projects / deliverable / binutils-gdb.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
* config/obj-coff.h (TC_SPARC): Don't define TARGET_FORMAT.
[deliverable/binutils-gdb.git] / gas / config / tc-hppa.c
CommitLineData
025b0302 1/* tc-hppa.c -- Assemble for the PA
5c11dba2 2 Copyright (C) 1989, 1996, 1997 Free Software Foundation, Inc.
025b0302 3
8f78d0e9 4 This file is part of GAS, the GNU Assembler.
025b0302 5
8f78d0e9
KR		 6 GAS is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 1, or (at your option)
9 any later version.
025b0302 10
8f78d0e9
KR		 11 GAS is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
025b0302 15
8f78d0e9
KR		 16 You should have received a copy of the GNU General Public License
17 along with GAS; see the file COPYING. If not, write to
5ae218df 18 the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
025b0302
ME		 19
20
8f78d0e9
KR		 21/* HP PA-RISC support was contributed by the Center for Software Science
22 at the University of Utah. */
025b0302
ME		 23
24#include <stdio.h>
25#include <ctype.h>
26
27#include "as.h"
28#include "subsegs.h"
29
d675782a
KR		 30#include "bfd/libhppa.h"
31#include "bfd/libbfd.h"
5cf4cd1b 32
8f78d0e9
KR		 33/* Be careful, this file includes data *declarations*. */
34#include "opcode/hppa.h"
35
36/* A "convient" place to put object file dependencies which do
37 not need to be seen outside of tc-hppa.c. */
5cf4cd1b 38#ifdef OBJ_ELF
8f78d0e9
KR		 39/* Names of various debugging spaces/subspaces. */
40#define GDB_DEBUG_SPACE_NAME ".stab"
41#define GDB_STRINGS_SUBSPACE_NAME ".stabstr"
42#define GDB_SYMBOLS_SUBSPACE_NAME ".stab"
3315c7c7 43#define UNWIND_SECTION_NAME ".PARISC.unwind"
8f78d0e9
KR		 44/* Nonzero if CODE is a fixup code needing further processing. */
45
8f78d0e9
KR		 46/* Object file formats specify relocation types. */
47typedef elf32_hppa_reloc_type reloc_type;
48
49/* Object file formats specify BFD symbol types. */
50typedef elf_symbol_type obj_symbol_type;
51
aa8b30ed
JL		 52/* How to generate a relocation. */
53#define hppa_gen_reloc_type hppa_elf_gen_reloc_type
54
eb91665b
JL		 55/* ELF objects can have versions, but apparently do not have anywhere
56 to store a copyright string. */
8f78d0e9 57#define obj_version obj_elf_version
eb91665b 58#define obj_copyright obj_elf_version
8f78d0e9 59
3b9a72c5
JL		 60/* Use space aliases. */
61#define USE_ALIASES 1
8f78d0e9
KR		 62#endif
63
64#ifdef OBJ_SOM
65/* Names of various debugging spaces/subspaces. */
66#define GDB_DEBUG_SPACE_NAME "$GDB_DEBUG$"
67#define GDB_STRINGS_SUBSPACE_NAME "$GDB_STRINGS$"
68#define GDB_SYMBOLS_SUBSPACE_NAME "$GDB_SYMBOLS$"
69#define UNWIND_SECTION_NAME "$UNWIND$"
70
71/* Object file formats specify relocation types. */
72typedef int reloc_type;
73
eb91665b 74/* SOM objects can have both a version string and a copyright string. */
8f78d0e9 75#define obj_version obj_som_version
eb91665b 76#define obj_copyright obj_som_copyright
8f78d0e9 77
3b9a72c5
JL		 78/* Do not use space aliases. */
79#define USE_ALIASES 0
80
aa8b30ed
JL		 81/* How to generate a relocation. */
82#define hppa_gen_reloc_type hppa_som_gen_reloc_type
8f78d0e9
KR		 83
84/* Object file formats specify BFD symbol types. */
85typedef som_symbol_type obj_symbol_type;
907f11fe
JL		 86
87/* This apparently isn't in older versions of hpux reloc.h. */
88#ifndef R_DLT_REL
89#define R_DLT_REL 0x78
90#endif
5cf4cd1b
KR		 91#endif
92
b81231b7
JL		 93#ifndef R_N0SEL
94#define R_N0SEL 0xd8
95#endif
96
97#ifndef R_N1SEL
98#define R_N1SEL 0xd9
99#endif
100
8f78d0e9
KR		 101/* Various structures and types used internally in tc-hppa.c. */
102
103/* Unwind table and descriptor. FIXME: Sync this with GDB version. */
025b0302
ME		 104
105struct unwind_desc
106 {
107 unsigned int cannot_unwind:1;
108 unsigned int millicode:1;
109 unsigned int millicode_save_rest:1;
110 unsigned int region_desc:2;
111 unsigned int save_sr:2;
8f78d0e9
KR		 112 unsigned int entry_fr:4;
113 unsigned int entry_gr:5;
025b0302
ME		 114 unsigned int args_stored:1;
115 unsigned int call_fr:5;
116 unsigned int call_gr:5;
117 unsigned int save_sp:1;
118 unsigned int save_rp:1;
119 unsigned int save_rp_in_frame:1;
120 unsigned int extn_ptr_defined:1;
121 unsigned int cleanup_defined:1;
122
123 unsigned int hpe_interrupt_marker:1;
124 unsigned int hpux_interrupt_marker:1;
125 unsigned int reserved:3;
126 unsigned int frame_size:27;
127 };
128
025b0302
ME		 129struct unwind_table
130 {
8f78d0e9
KR		 131 /* Starting and ending offsets of the region described by
132 descriptor. */
133 unsigned int start_offset;
134 unsigned int end_offset;
135 struct unwind_desc descriptor;
025b0302
ME		 136 };
137
8f78d0e9
KR		 138/* This structure is used by the .callinfo, .enter, .leave pseudo-ops to
139 control the entry and exit code they generate. It is also used in
140 creation of the correct stack unwind descriptors.
025b0302 141
8f78d0e9
KR		 142 NOTE: GAS does not support .enter and .leave for the generation of
143 prologues and epilogues. FIXME.
144
145 The fields in structure roughly correspond to the arguments available on the
146 .callinfo pseudo-op. */
025b0302
ME		 147
148struct call_info
149 {
8f78d0e9
KR		 150 /* The unwind descriptor being built. */
151 struct unwind_table ci_unwind;
152
153 /* Name of this function. */
154 symbolS *start_symbol;
155
4ff6f92a
JL		 156 /* (temporary) symbol used to mark the end of this function. */
157 symbolS *end_symbol;
8f78d0e9 158
8f78d0e9
KR		 159 /* Next entry in the chain. */
160 struct call_info *ci_next;
161 };
162
163/* Operand formats for FP instructions. Note not all FP instructions
164 allow all four formats to be used (for example fmpysub only allows
165 SGL and DBL). */
166typedef enum
167 {
168 SGL, DBL, ILLEGAL_FMT, QUAD
169 }
170fp_operand_format;
171
e75acd68
JL		 172/* This fully describes the symbol types which may be attached to
173 an EXPORT or IMPORT directive. Only SOM uses this formation
174 (ELF has no need for it). */
175typedef enum
c5e9ccd0
JL		 176 {
177 SYMBOL_TYPE_UNKNOWN,
178 SYMBOL_TYPE_ABSOLUTE,
179 SYMBOL_TYPE_CODE,
180 SYMBOL_TYPE_DATA,
181 SYMBOL_TYPE_ENTRY,
182 SYMBOL_TYPE_MILLICODE,
183 SYMBOL_TYPE_PLABEL,
184 SYMBOL_TYPE_PRI_PROG,
185 SYMBOL_TYPE_SEC_PROG,
186 }
187pa_symbol_type;
e75acd68 188
75c28b49 189/* This structure contains information needed to assemble
8f78d0e9 190 individual instructions. */
025b0302
ME		 191struct pa_it
192 {
8f78d0e9 193 /* Holds the opcode after parsing by pa_ip. */
025b0302 194 unsigned long opcode;
8f78d0e9
KR		 195
196 /* Holds an expression associated with the current instruction. */
025b0302 197 expressionS exp;
8f78d0e9
KR		 198
199 /* Does this instruction use PC-relative addressing. */
025b0302 200 int pcrel;
8f78d0e9
KR		 201
202 /* Floating point formats for operand1 and operand2. */
203 fp_operand_format fpof1;
204 fp_operand_format fpof2;
205
206 /* Holds the field selector for this instruction
207 (for example L%, LR%, etc). */
025b0302 208 long field_selector;
8f78d0e9
KR		 209
210 /* Holds any argument relocation bits associated with this
211 instruction. (instruction should be some sort of call). */
025b0302 212 long arg_reloc;
8f78d0e9
KR		 213
214 /* The format specification for this instruction. */
025b0302 215 int format;
8f78d0e9
KR		 216
217 /* The relocation (if any) associated with this instruction. */
218 reloc_type reloc;
025b0302
ME		 219 };
220
8f78d0e9 221/* PA-89 floating point registers are arranged like this:
025b0302 222
025b0302 223
8f78d0e9
KR		 224 +--------------+--------------+
225 | 0 or 16L | 16 or 16R |
226 +--------------+--------------+
227 | 1 or 17L | 17 or 17R |
228 +--------------+--------------+
229 | | |
230
231 . . .
232 . . .
233 . . .
234
235 | | |
236 +--------------+--------------+
237 | 14 or 30L | 30 or 30R |
238 +--------------+--------------+
239 | 15 or 31L | 31 or 31R |
240 +--------------+--------------+
241
242
243 The following is a version of pa_parse_number that
244 handles the L/R notation and returns the correct
245 value to put into the instruction register field.
246 The correct value to put into the instruction is
4829cd65 247 encoded in the structure 'pa_11_fp_reg_struct'. */
8f78d0e9 248
4829cd65 249struct pa_11_fp_reg_struct
8f78d0e9
KR		 250 {
251 /* The register number. */
252 char number_part;
253
254 /* L/R selector. */
255 char l_r_select;
256 };
257
258/* Additional information needed to build argument relocation stubs. */
259struct call_desc
260 {
261 /* The argument relocation specification. */
262 unsigned int arg_reloc;
263
264 /* Number of arguments. */
265 unsigned int arg_count;
266 };
267
268/* This structure defines an entry in the subspace dictionary
269 chain. */
270
271struct subspace_dictionary_chain
272 {
47f45d66
JL		 273 /* Nonzero if this space has been defined by the user code. */
274 unsigned int ssd_defined;
275
8f78d0e9
KR		 276 /* Name of this subspace. */
277 char *ssd_name;
278
279 /* GAS segment and subsegment associated with this subspace. */
280 asection *ssd_seg;
281 int ssd_subseg;
282
8f78d0e9
KR		 283 /* Next space in the subspace dictionary chain. */
284 struct subspace_dictionary_chain *ssd_next;
285 };
286
287typedef struct subspace_dictionary_chain ssd_chain_struct;
288
289/* This structure defines an entry in the subspace dictionary
290 chain. */
291
292struct space_dictionary_chain
293 {
75c28b49 294 /* Nonzero if this space has been defined by the user code or
8f78d0e9
KR		 295 as a default space. */
296 unsigned int sd_defined;
297
298 /* Nonzero if this spaces has been defined by the user code. */
299 unsigned int sd_user_defined;
300
8f78d0e9
KR		 301 /* The space number (or index). */
302 unsigned int sd_spnum;
303
8f78d0e9
KR		 304 /* The name of this subspace. */
305 char *sd_name;
306
307 /* GAS segment to which this subspace corresponds. */
308 asection *sd_seg;
309
310 /* Current subsegment number being used. */
311 int sd_last_subseg;
312
313 /* The chain of subspaces contained within this space. */
314 ssd_chain_struct *sd_subspaces;
315
316 /* The next entry in the space dictionary chain. */
317 struct space_dictionary_chain *sd_next;
318 };
319
320typedef struct space_dictionary_chain sd_chain_struct;
321
322/* Structure for previous label tracking. Needed so that alignments,
323 callinfo declarations, etc can be easily attached to a particular
324 label. */
325typedef struct label_symbol_struct
326 {
327 struct symbol *lss_label;
328 sd_chain_struct *lss_space;
329 struct label_symbol_struct *lss_next;
330 }
331label_symbol_struct;
332
333/* This structure defines attributes of the default subspace
334 dictionary entries. */
335
336struct default_subspace_dict
337 {
c5e9ccd0 338 /* Name of the subspace. */
8f78d0e9
KR		 339 char *name;
340
341 /* FIXME. Is this still needed? */
342 char defined;
343
344 /* Nonzero if this subspace is loadable. */
345 char loadable;
346
347 /* Nonzero if this subspace contains only code. */
348 char code_only;
349
350 /* Nonzero if this is a common subspace. */
351 char common;
352
353 /* Nonzero if this is a common subspace which allows symbols
354 to be multiply defined. */
355 char dup_common;
356
357 /* Nonzero if this subspace should be zero filled. */
358 char zero;
359
360 /* Sort key for this subspace. */
361 unsigned char sort;
362
363 /* Access control bits for this subspace. Can represent RWX access
364 as well as privilege level changes for gateways. */
365 int access;
366
367 /* Index of containing space. */
368 int space_index;
369
370 /* Alignment (in bytes) of this subspace. */
371 int alignment;
372
373 /* Quadrant within space where this subspace should be loaded. */
374 int quadrant;
375
376 /* An index into the default spaces array. */
377 int def_space_index;
378
379 /* An alias for this section (or NULL if no alias exists). */
380 char *alias;
381
382 /* Subsegment associated with this subspace. */
383 subsegT subsegment;
384 };
385
386/* This structure defines attributes of the default space
387 dictionary entries. */
388
389struct default_space_dict
390 {
391 /* Name of the space. */
392 char *name;
393
394 /* Space number. It is possible to identify spaces within
395 assembly code numerically! */
396 int spnum;
397
398 /* Nonzero if this space is loadable. */
399 char loadable;
400
401 /* Nonzero if this space is "defined". FIXME is still needed */
402 char defined;
403
404 /* Nonzero if this space can not be shared. */
405 char private;
406
407 /* Sort key for this space. */
408 unsigned char sort;
409
410 /* Segment associated with this space. */
411 asection *segment;
412
413 /* An alias for this section (or NULL if no alias exists). */
414 char *alias;
415 };
416
417/* Extra information needed to perform fixups (relocations) on the PA. */
418struct hppa_fix_struct
c5e9ccd0 419 {
8f78d0e9 420 /* The field selector. */
ac866582 421 enum hppa_reloc_field_selector_type_alt fx_r_field;
8f78d0e9
KR		 422
423 /* Type of fixup. */
424 int fx_r_type;
425
426 /* Format of fixup. */
427 int fx_r_format;
428
429 /* Argument relocation bits. */
430 long fx_arg_reloc;
431
fca59f9d
JL		 432 /* The segment this fixup appears in. */
433 segT segment;
c5e9ccd0 434 };
8f78d0e9
KR		 435
436/* Structure to hold information about predefined registers. */
437
438struct pd_reg
c5e9ccd0
JL		 439 {
440 char *name;
441 int value;
442 };
8f78d0e9
KR		 443
444/* This structure defines the mapping from a FP condition string
445 to a condition number which can be recorded in an instruction. */
446struct fp_cond_map
c5e9ccd0
JL		 447 {
448 char *string;
449 int cond;
450 };
8f78d0e9
KR		 451
452/* This structure defines a mapping from a field selector
453 string to a field selector type. */
454struct selector_entry
c5e9ccd0
JL		 455 {
456 char *prefix;
457 int field_selector;
458 };
025b0302 459
8f78d0e9
KR		 460/* Prototypes for functions local to tc-hppa.c. */
461
60937ce7 462static void pa_check_current_space_and_subspace PARAMS ((void));
8f78d0e9 463static fp_operand_format pa_parse_fp_format PARAMS ((char **s));
8f78d0e9
KR		 464static void pa_cons PARAMS ((int));
465static void pa_data PARAMS ((int));
8f78d0e9
KR		 466static void pa_float_cons PARAMS ((int));
467static void pa_fill PARAMS ((int));
468static void pa_lcomm PARAMS ((int));
469static void pa_lsym PARAMS ((int));
470static void pa_stringer PARAMS ((int));
471static void pa_text PARAMS ((int));
472static void pa_version PARAMS ((int));
473static int pa_parse_fp_cmp_cond PARAMS ((char **));
474static int get_expression PARAMS ((char *));
48153d49
JL		 475static int pa_get_absolute_expression PARAMS ((struct pa_it *, char **));
476static int evaluate_absolute PARAMS ((struct pa_it *));
8f78d0e9
KR		 477static unsigned int pa_build_arg_reloc PARAMS ((char *));
478static unsigned int pa_align_arg_reloc PARAMS ((unsigned int, unsigned int));
479static int pa_parse_nullif PARAMS ((char **));
480static int pa_parse_nonneg_cmpsub_cmpltr PARAMS ((char **, int));
481static int pa_parse_neg_cmpsub_cmpltr PARAMS ((char **, int));
482static int pa_parse_neg_add_cmpltr PARAMS ((char **, int));
483static int pa_parse_nonneg_add_cmpltr PARAMS ((char **, int));
e67b3aa3 484static void pa_align PARAMS ((int));
8f78d0e9 485static void pa_block PARAMS ((int));
5ae218df 486static void pa_brtab PARAMS ((int));
448b5aad 487static void pa_try PARAMS ((int));
8f78d0e9
KR		 488static void pa_call PARAMS ((int));
489static void pa_call_args PARAMS ((struct call_desc *));
490static void pa_callinfo PARAMS ((int));
491static void pa_code PARAMS ((int));
492static void pa_comm PARAMS ((int));
493static void pa_copyright PARAMS ((int));
494static void pa_end PARAMS ((int));
495static void pa_enter PARAMS ((int));
496static void pa_entry PARAMS ((int));
497static void pa_equ PARAMS ((int));
498static void pa_exit PARAMS ((int));
499static void pa_export PARAMS ((int));
48153d49 500static void pa_type_args PARAMS ((symbolS *, int));
8f78d0e9
KR		 501static void pa_import PARAMS ((int));
502static void pa_label PARAMS ((int));
503static void pa_leave PARAMS ((int));
b81231b7 504static void pa_level PARAMS ((int));
8f78d0e9
KR		 505static void pa_origin PARAMS ((int));
506static void pa_proc PARAMS ((int));
507static void pa_procend PARAMS ((int));
508static void pa_space PARAMS ((int));
509static void pa_spnum PARAMS ((int));
510static void pa_subspace PARAMS ((int));
511static void pa_param PARAMS ((int));
512static void pa_undefine_label PARAMS ((void));
4829cd65
JL		 513static int need_pa11_opcode PARAMS ((struct pa_it *,
514 struct pa_11_fp_reg_struct *));
515static int pa_parse_number PARAMS ((char **, struct pa_11_fp_reg_struct *));
8f78d0e9 516static label_symbol_struct *pa_get_label PARAMS ((void));
de3ffc7a
JL		 517static sd_chain_struct *create_new_space PARAMS ((char *, int, int,
518 int, int, int,
8f78d0e9 519 asection *, int));
c5e9ccd0 520static ssd_chain_struct *create_new_subspace PARAMS ((sd_chain_struct *,
de3ffc7a
JL		 521 char *, int, int,
522 int, int, int,
523 int, int, int, int,
c5e9ccd0 524 int, asection *));
3b9a72c5 525static ssd_chain_struct *update_subspace PARAMS ((sd_chain_struct *,
de3ffc7a
JL		 526 char *, int, int, int,
527 int, int, int, int,
18c4f112
JL		 528 int, int, int,
529 asection *));
8f78d0e9 530static sd_chain_struct *is_defined_space PARAMS ((char *));
47f45d66 531static ssd_chain_struct *is_defined_subspace PARAMS ((char *));
8f78d0e9 532static sd_chain_struct *pa_segment_to_space PARAMS ((asection *));
c5e9ccd0
JL		 533static ssd_chain_struct *pa_subsegment_to_subspace PARAMS ((asection *,
534 subsegT));
8f78d0e9
KR		 535static sd_chain_struct *pa_find_space_by_number PARAMS ((int));
536static unsigned int pa_subspace_start PARAMS ((sd_chain_struct *, int));
8f78d0e9 537static void pa_ip PARAMS ((char *));
de3ffc7a 538static void fix_new_hppa PARAMS ((fragS *, int, int, symbolS *,
8f78d0e9 539 long, expressionS *, int,
f2eed884
JL		 540 bfd_reloc_code_real_type,
541 enum hppa_reloc_field_selector_type,
75c28b49 542 int, long, int *));
8f78d0e9
KR		 543static int is_end_of_statement PARAMS ((void));
544static int reg_name_search PARAMS ((char *));
545static int pa_chk_field_selector PARAMS ((char **));
546static int is_same_frag PARAMS ((fragS *, fragS *));
8f78d0e9
KR		 547static void process_exit PARAMS ((void));
548static sd_chain_struct *pa_parse_space_stmt PARAMS ((char *, int));
aa8b30ed 549static int log2 PARAMS ((int));
8f78d0e9
KR		 550static int pa_next_subseg PARAMS ((sd_chain_struct *));
551static unsigned int pa_stringer_aux PARAMS ((char *));
552static void pa_spaces_begin PARAMS ((void));
ac866582
JL		 553
554#ifdef OBJ_ELF
4ff6f92a 555static void hppa_elf_mark_end_of_function PARAMS ((void));
ac866582
JL		 556static void pa_build_unwind_subspace PARAMS ((struct call_info *));
557#endif
8f78d0e9
KR		 558
559/* File and gloally scoped variable declarations. */
560
561/* Root and final entry in the space chain. */
562static sd_chain_struct *space_dict_root;
563static sd_chain_struct *space_dict_last;
564
565/* The current space and subspace. */
566static sd_chain_struct *current_space;
567static ssd_chain_struct *current_subspace;
568
569/* Root of the call_info chain. */
570static struct call_info *call_info_root;
571
572/* The last call_info (for functions) structure
573 seen so it can be associated with fixups and
574 function labels. */
575static struct call_info *last_call_info;
576
c5e9ccd0 577/* The last call description (for actual calls). */
8f78d0e9
KR		 578static struct call_desc last_call_desc;
579
c5e9ccd0 580/* Jumps are always the same size -- one instruction. */
025b0302
ME		 581int md_short_jump_size = 4;
582int md_long_jump_size = 4;
583
8f78d0e9
KR		 584/* handle of the OPCODE hash table */
585static struct hash_control *op_hash = NULL;
025b0302 586
8f78d0e9
KR		 587/* This array holds the chars that always start a comment. If the
588 pre-processor is disabled, these aren't very useful. */
589const char comment_chars[] = ";";
590
591/* Table of pseudo ops for the PA. FIXME -- how many of these
592 are now redundant with the overall GAS and the object file
593 dependent tables? */
594const pseudo_typeS md_pseudo_table[] =
595{
596 /* align pseudo-ops on the PA specify the actual alignment requested,
597 not the log2 of the requested alignment. */
e67b3aa3 598 {"align", pa_align, 8},
5ae218df 599 {"begin_brtab", pa_brtab, 1},
448b5aad 600 {"begin_try", pa_try, 1},
025b0302 601 {"block", pa_block, 1},
025b0302 602 {"blockz", pa_block, 0},
025b0302 603 {"byte", pa_cons, 1},
025b0302 604 {"call", pa_call, 0},
025b0302 605 {"callinfo", pa_callinfo, 0},
025b0302 606 {"code", pa_code, 0},
025b0302 607 {"comm", pa_comm, 0},
025b0302 608 {"copyright", pa_copyright, 0},
025b0302 609 {"data", pa_data, 0},
025b0302 610 {"double", pa_float_cons, 'd'},
025b0302 611 {"end", pa_end, 0},
5ae218df 612 {"end_brtab", pa_brtab, 0},
448b5aad 613 {"end_try", pa_try, 0},
025b0302 614 {"enter", pa_enter, 0},
025b0302 615 {"entry", pa_entry, 0},
025b0302 616 {"equ", pa_equ, 0},
025b0302 617 {"exit", pa_exit, 0},
025b0302 618 {"export", pa_export, 0},
025b0302 619 {"fill", pa_fill, 0},
025b0302 620 {"float", pa_float_cons, 'f'},
025b0302 621 {"half", pa_cons, 2},
025b0302 622 {"import", pa_import, 0},
025b0302 623 {"int", pa_cons, 4},
025b0302 624 {"label", pa_label, 0},
025b0302 625 {"lcomm", pa_lcomm, 0},
025b0302 626 {"leave", pa_leave, 0},
b81231b7 627 {"level", pa_level, 0},
025b0302 628 {"long", pa_cons, 4},
025b0302 629 {"lsym", pa_lsym, 0},
83b59013 630 {"nsubspa", pa_subspace, 1},
aa8b30ed 631 {"octa", pa_cons, 16},
025b0302 632 {"org", pa_origin, 0},
025b0302 633 {"origin", pa_origin, 0},
5cf4cd1b 634 {"param", pa_param, 0},
025b0302 635 {"proc", pa_proc, 0},
025b0302 636 {"procend", pa_procend, 0},
aa8b30ed 637 {"quad", pa_cons, 8},
8f78d0e9 638 {"reg", pa_equ, 1},
025b0302 639 {"short", pa_cons, 2},
025b0302 640 {"single", pa_float_cons, 'f'},
025b0302 641 {"space", pa_space, 0},
025b0302 642 {"spnum", pa_spnum, 0},
025b0302 643 {"string", pa_stringer, 0},
025b0302 644 {"stringz", pa_stringer, 1},
025b0302 645 {"subspa", pa_subspace, 0},
025b0302 646 {"text", pa_text, 0},
025b0302 647 {"version", pa_version, 0},
025b0302 648 {"word", pa_cons, 4},
025b0302
ME		 649 {NULL, 0, 0}
650};
651
652/* This array holds the chars that only start a comment at the beginning of
653 a line. If the line seems to have the form '# 123 filename'
8f78d0e9
KR		 654 .line and .file directives will appear in the pre-processed output.
655
656 Note that input_file.c hand checks for '#' at the beginning of the
025b0302 657 first line of the input file. This is because the compiler outputs
8f78d0e9
KR		 658 #NO_APP at the beginning of its output.
659
b81231b7 660 Also note that C style comments will always work. */
025b0302
ME		 661const char line_comment_chars[] = "#";
662
8f78d0e9 663/* This array holds the characters which act as line separators. */
025b0302
ME		 664const char line_separator_chars[] = "!";
665
8f78d0e9 666/* Chars that can be used to separate mant from exp in floating point nums. */
025b0302
ME		 667const char EXP_CHARS[] = "eE";
668
8f78d0e9 669/* Chars that mean this number is a floating point constant.
75c28b49 670 As in 0f12.456 or 0d1.2345e12.
025b0302 671
75c28b49 672 Be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be
8f78d0e9
KR		 673 changed in read.c. Ideally it shouldn't hae to know abou it at
674 all, but nothing is ideal around here. */
675const char FLT_CHARS[] = "rRsSfFdDxXpP";
025b0302 676
8f78d0e9 677static struct pa_it the_insn;
025b0302 678
8f78d0e9
KR		 679/* Points to the end of an expression just parsed by get_expressoin
680 and friends. FIXME. This shouldn't be handled with a file-global
681 variable. */
682static char *expr_end;
025b0302 683
8f78d0e9 684/* Nonzero if a .callinfo appeared within the current procedure. */
5cf4cd1b 685static int callinfo_found;
025b0302 686
8f78d0e9 687/* Nonzero if the assembler is currently within a .entry/.exit pair. */
5cf4cd1b 688static int within_entry_exit;
025b0302 689
8f78d0e9 690/* Nonzero if the assembler is currently within a procedure definition. */
5cf4cd1b 691static int within_procedure;
025b0302 692
8f78d0e9
KR		 693/* Handle on strucutre which keep track of the last symbol
694 seen in each subspace. */
695static label_symbol_struct *label_symbols_rootp = NULL;
025b0302 696
8f78d0e9
KR		 697/* Holds the last field selector. */
698static int hppa_field_selector;
025b0302 699
6868afe6 700/* A dummy bfd symbol so that all relocations have symbols of some kind. */
fca59f9d 701static symbolS *dummy_symbol;
6868afe6 702
8f78d0e9
KR		 703/* Nonzero if errors are to be printed. */
704static int print_errors = 1;
025b0302 705
8f78d0e9 706/* List of registers that are pre-defined:
025b0302 707
8f78d0e9 708 Each general register has one predefined name of the form
75c28b49 709 %r<REGNUM> which has the value <REGNUM>.
025b0302 710
8f78d0e9 711 Space and control registers are handled in a similar manner,
75c28b49 712 but use %sr<REGNUM> and %cr<REGNUM> as their predefined names.
025b0302 713
8f78d0e9
KR		 714 Likewise for the floating point registers, but of the form
715 %fr<REGNUM>. Floating point registers have additional predefined
716 names with 'L' and 'R' suffixes (e.g. %fr19L, %fr19R) which
717 again have the value <REGNUM>.
025b0302 718
8f78d0e9 719 Many registers also have synonyms:
025b0302 720
8f78d0e9
KR		 721 %r26 - %r23 have %arg0 - %arg3 as synonyms
722 %r28 - %r29 have %ret0 - %ret1 as synonyms
723 %r30 has %sp as a synonym
d6e524f3
JL		 724 %r27 has %dp as a synonym
725 %r2 has %rp as a synonym
025b0302 726
8f78d0e9 727 Almost every control register has a synonym; they are not listed
75c28b49 728 here for brevity.
025b0302 729
8f78d0e9 730 The table is sorted. Suitable for searching by a binary search. */
025b0302 731
8f78d0e9 732static const struct pd_reg pre_defined_registers[] =
025b0302 733{
8f78d0e9
KR		 734 {"%arg0", 26},
735 {"%arg1", 25},
736 {"%arg2", 24},
737 {"%arg3", 23},
738 {"%cr0", 0},
739 {"%cr10", 10},
740 {"%cr11", 11},
741 {"%cr12", 12},
742 {"%cr13", 13},
743 {"%cr14", 14},
744 {"%cr15", 15},
745 {"%cr16", 16},
746 {"%cr17", 17},
747 {"%cr18", 18},
748 {"%cr19", 19},
749 {"%cr20", 20},
750 {"%cr21", 21},
751 {"%cr22", 22},
752 {"%cr23", 23},
753 {"%cr24", 24},
754 {"%cr25", 25},
755 {"%cr26", 26},
756 {"%cr27", 27},
757 {"%cr28", 28},
758 {"%cr29", 29},
759 {"%cr30", 30},
760 {"%cr31", 31},
761 {"%cr8", 8},
762 {"%cr9", 9},
d6e524f3 763 {"%dp", 27},
8f78d0e9
KR		 764 {"%eiem", 15},
765 {"%eirr", 23},
766 {"%fr0", 0},
4047ff1d
JL		 767 {"%fr0l", 0},
768 {"%fr0r", 0},
8f78d0e9
KR		 769 {"%fr1", 1},
770 {"%fr10", 10},
4047ff1d
JL		 771 {"%fr10l", 10},
772 {"%fr10r", 10},
8f78d0e9 773 {"%fr11", 11},
4047ff1d
JL		 774 {"%fr11l", 11},
775 {"%fr11r", 11},
8f78d0e9 776 {"%fr12", 12},
4047ff1d
JL		 777 {"%fr12l", 12},
778 {"%fr12r", 12},
8f78d0e9 779 {"%fr13", 13},
4047ff1d
JL		 780 {"%fr13l", 13},
781 {"%fr13r", 13},
8f78d0e9 782 {"%fr14", 14},
4047ff1d
JL		 783 {"%fr14l", 14},
784 {"%fr14r", 14},
8f78d0e9 785 {"%fr15", 15},
4047ff1d
JL		 786 {"%fr15l", 15},
787 {"%fr15r", 15},
8f78d0e9 788 {"%fr16", 16},
4047ff1d
JL		 789 {"%fr16l", 16},
790 {"%fr16r", 16},
8f78d0e9 791 {"%fr17", 17},
4047ff1d
JL		 792 {"%fr17l", 17},
793 {"%fr17r", 17},
8f78d0e9 794 {"%fr18", 18},
4047ff1d
JL		 795 {"%fr18l", 18},
796 {"%fr18r", 18},
8f78d0e9 797 {"%fr19", 19},
4047ff1d
JL		 798 {"%fr19l", 19},
799 {"%fr19r", 19},
800 {"%fr1l", 1},
801 {"%fr1r", 1},
8f78d0e9
KR		 802 {"%fr2", 2},
803 {"%fr20", 20},
4047ff1d
JL		 804 {"%fr20l", 20},
805 {"%fr20r", 20},
8f78d0e9 806 {"%fr21", 21},
4047ff1d
JL		 807 {"%fr21l", 21},
808 {"%fr21r", 21},
8f78d0e9 809 {"%fr22", 22},
4047ff1d
JL		 810 {"%fr22l", 22},
811 {"%fr22r", 22},
8f78d0e9 812 {"%fr23", 23},
4047ff1d
JL		 813 {"%fr23l", 23},
814 {"%fr23r", 23},
8f78d0e9 815 {"%fr24", 24},
4047ff1d
JL		 816 {"%fr24l", 24},
817 {"%fr24r", 24},
8f78d0e9 818 {"%fr25", 25},
4047ff1d
JL		 819 {"%fr25l", 25},
820 {"%fr25r", 25},
8f78d0e9 821 {"%fr26", 26},
4047ff1d
JL		 822 {"%fr26l", 26},
823 {"%fr26r", 26},
8f78d0e9 824 {"%fr27", 27},
4047ff1d
JL		 825 {"%fr27l", 27},
826 {"%fr27r", 27},
8f78d0e9 827 {"%fr28", 28},
4047ff1d
JL		 828 {"%fr28l", 28},
829 {"%fr28r", 28},
8f78d0e9 830 {"%fr29", 29},
4047ff1d
JL		 831 {"%fr29l", 29},
832 {"%fr29r", 29},
833 {"%fr2l", 2},
834 {"%fr2r", 2},
8f78d0e9
KR		 835 {"%fr3", 3},
836 {"%fr30", 30},
4047ff1d
JL		 837 {"%fr30l", 30},
838 {"%fr30r", 30},
8f78d0e9 839 {"%fr31", 31},
4047ff1d
JL		 840 {"%fr31l", 31},
841 {"%fr31r", 31},
842 {"%fr3l", 3},
843 {"%fr3r", 3},
8f78d0e9 844 {"%fr4", 4},
4047ff1d
JL		 845 {"%fr4l", 4},
846 {"%fr4r", 4},
8f78d0e9 847 {"%fr5", 5},
4047ff1d
JL		 848 {"%fr5l", 5},
849 {"%fr5r", 5},
8f78d0e9 850 {"%fr6", 6},
4047ff1d
JL		 851 {"%fr6l", 6},
852 {"%fr6r", 6},
8f78d0e9 853 {"%fr7", 7},
4047ff1d
JL		 854 {"%fr7l", 7},
855 {"%fr7r", 7},
8f78d0e9 856 {"%fr8", 8},
4047ff1d
JL		 857 {"%fr8l", 8},
858 {"%fr8r", 8},
8f78d0e9 859 {"%fr9", 9},
4047ff1d
JL		 860 {"%fr9l", 9},
861 {"%fr9r", 9},
8f78d0e9
KR		 862 {"%hta", 25},
863 {"%iir", 19},
864 {"%ior", 21},
865 {"%ipsw", 22},
866 {"%isr", 20},
867 {"%itmr", 16},
868 {"%iva", 14},
869 {"%pcoq", 18},
870 {"%pcsq", 17},
871 {"%pidr1", 8},
872 {"%pidr2", 9},
873 {"%pidr3", 12},
874 {"%pidr4", 13},
875 {"%ppda", 24},
876 {"%r0", 0},
877 {"%r1", 1},
878 {"%r10", 10},
879 {"%r11", 11},
880 {"%r12", 12},
881 {"%r13", 13},
882 {"%r14", 14},
883 {"%r15", 15},
884 {"%r16", 16},
885 {"%r17", 17},
886 {"%r18", 18},
887 {"%r19", 19},
888 {"%r2", 2},
889 {"%r20", 20},
890 {"%r21", 21},
891 {"%r22", 22},
892 {"%r23", 23},
893 {"%r24", 24},
894 {"%r25", 25},
895 {"%r26", 26},
896 {"%r27", 27},
897 {"%r28", 28},
898 {"%r29", 29},
899 {"%r3", 3},
900 {"%r30", 30},
901 {"%r31", 31},
902 {"%r4", 4},
8f78d0e9 903 {"%r5", 5},
8f78d0e9 904 {"%r6", 6},
8f78d0e9 905 {"%r7", 7},
8f78d0e9 906 {"%r8", 8},
8f78d0e9 907 {"%r9", 9},
8f78d0e9
KR		 908 {"%rctr", 0},
909 {"%ret0", 28},
910 {"%ret1", 29},
d6e524f3 911 {"%rp", 2},
8f78d0e9
KR		 912 {"%sar", 11},
913 {"%sp", 30},
914 {"%sr0", 0},
915 {"%sr1", 1},
916 {"%sr2", 2},
917 {"%sr3", 3},
918 {"%sr4", 4},
919 {"%sr5", 5},
920 {"%sr6", 6},
921 {"%sr7", 7},
922 {"%tr0", 24},
923 {"%tr1", 25},
924 {"%tr2", 26},
925 {"%tr3", 27},
926 {"%tr4", 28},
927 {"%tr5", 29},
928 {"%tr6", 30},
929 {"%tr7", 31}
930};
025b0302 931
8f78d0e9 932/* This table is sorted by order of the length of the string. This is
75c28b49 933 so we check for <> before we check for <. If we had a <> and checked
8f78d0e9 934 for < first, we would get a false match. */
c5e9ccd0 935static const struct fp_cond_map fp_cond_map[] =
8f78d0e9
KR		 936{
937 {"false?", 0},
938 {"false", 1},
939 {"true?", 30},
940 {"true", 31},
941 {"!<=>", 3},
942 {"!?>=", 8},
943 {"!?<=", 16},
944 {"!<>", 7},
945 {"!>=", 11},
946 {"!?>", 12},
947 {"?<=", 14},
948 {"!<=", 19},
949 {"!?<", 20},
950 {"?>=", 22},
951 {"!?=", 24},
952 {"!=t", 27},
953 {"<=>", 29},
954 {"=t", 5},
955 {"?=", 6},
956 {"?<", 10},
957 {"<=", 13},
958 {"!>", 15},
959 {"?>", 18},
960 {">=", 21},
961 {"!<", 23},
962 {"<>", 25},
963 {"!=", 26},
964 {"!?", 28},
965 {"?", 2},
966 {"=", 4},
967 {"<", 9},
968 {">", 17}
969};
025b0302 970
8f78d0e9
KR		 971static const struct selector_entry selector_table[] =
972{
4047ff1d
JL		 973 {"f", e_fsel},
974 {"l", e_lsel},
975 {"ld", e_ldsel},
976 {"lp", e_lpsel},
977 {"lr", e_lrsel},
978 {"ls", e_lssel},
979 {"lt", e_ltsel},
83b59013
JL		 980 {"n", e_nsel},
981 {"nl", e_nlsel},
982 {"nlr", e_nlrsel},
4047ff1d
JL		 983 {"p", e_psel},
984 {"r", e_rsel},
985 {"rd", e_rdsel},
986 {"rp", e_rpsel},
987 {"rr", e_rrsel},
988 {"rs", e_rssel},
989 {"rt", e_rtsel},
990 {"t", e_tsel},
8f78d0e9 991};
025b0302 992
8f78d0e9 993/* default space and subspace dictionaries */
025b0302 994
8f78d0e9
KR		 995#define GDB_SYMBOLS GDB_SYMBOLS_SUBSPACE_NAME
996#define GDB_STRINGS GDB_STRINGS_SUBSPACE_NAME
025b0302 997
8f78d0e9
KR		 998/* pre-defined subsegments (subspaces) for the HPPA. */
999#define SUBSEG_CODE 0
8f78d0e9 1000#define SUBSEG_LIT 1
b81231b7
JL		 1001#define SUBSEG_MILLI 2
1002#define SUBSEG_DATA 0
8f78d0e9
KR		 1003#define SUBSEG_BSS 2
1004#define SUBSEG_UNWIND 3
1005#define SUBSEG_GDB_STRINGS 0
1006#define SUBSEG_GDB_SYMBOLS 1
025b0302 1007
8f78d0e9 1008static struct default_subspace_dict pa_def_subspaces[] =
025b0302 1009{
aa8b30ed
JL		 1010 {"$CODE$", 1, 1, 1, 0, 0, 0, 24, 0x2c, 0, 8, 0, 0, ".text", SUBSEG_CODE},
1011 {"$DATA$", 1, 1, 0, 0, 0, 0, 24, 0x1f, 1, 8, 1, 1, ".data", SUBSEG_DATA},
1012 {"$LIT$", 1, 1, 0, 0, 0, 0, 16, 0x2c, 0, 8, 0, 0, ".text", SUBSEG_LIT},
b81231b7 1013 {"$MILLICODE$", 1, 1, 0, 0, 0, 0, 8, 0x2c, 0, 8, 0, 0, ".text", SUBSEG_MILLI},
aa8b30ed 1014 {"$BSS$", 1, 1, 0, 0, 0, 1, 80, 0x1f, 1, 8, 1, 1, ".bss", SUBSEG_BSS},
31a385d1 1015#ifdef OBJ_ELF
3315c7c7 1016 {"$UNWIND$", 1, 1, 0, 0, 0, 0, 64, 0x2c, 0, 4, 0, 0, ".PARISC.unwind", SUBSEG_UNWIND},
31a385d1 1017#endif
8f78d0e9
KR		 1018 {NULL, 0, 1, 0, 0, 0, 0, 255, 0x1f, 0, 4, 0, 0, 0}
1019};
025b0302 1020
8f78d0e9
KR		 1021static struct default_space_dict pa_def_spaces[] =
1022{
aa8b30ed
JL		 1023 {"$TEXT$", 0, 1, 1, 0, 8, ASEC_NULL, ".text"},
1024 {"$PRIVATE$", 1, 1, 1, 1, 16, ASEC_NULL, ".data"},
8f78d0e9
KR		 1025 {NULL, 0, 0, 0, 0, 0, ASEC_NULL, NULL}
1026};
025b0302 1027
8f78d0e9
KR		 1028/* Misc local definitions used by the assembler. */
1029
1030/* Return nonzero if the string pointed to by S potentially represents
1031 a right or left half of a FP register */
1032#define IS_R_SELECT(S) (*(S) == 'R' || *(S) == 'r')
1033#define IS_L_SELECT(S) (*(S) == 'L' || *(S) == 'l')
1034
1035/* These macros are used to maintain spaces/subspaces. */
1036#define SPACE_DEFINED(space_chain) (space_chain)->sd_defined
1037#define SPACE_USER_DEFINED(space_chain) (space_chain)->sd_user_defined
8f78d0e9 1038#define SPACE_SPNUM(space_chain) (space_chain)->sd_spnum
8f78d0e9 1039#define SPACE_NAME(space_chain) (space_chain)->sd_name
8f78d0e9 1040
47f45d66 1041#define SUBSPACE_DEFINED(ss_chain) (ss_chain)->ssd_defined
8f78d0e9
KR		 1042#define SUBSPACE_NAME(ss_chain) (ss_chain)->ssd_name
1043
48153d49
JL		 1044/* Insert FIELD into OPCODE starting at bit START. Continue pa_ip
1045 main loop after insertion. */
1046
1047#define INSERT_FIELD_AND_CONTINUE(OPCODE, FIELD, START) \
1048 { \
1049 ((OPCODE) |= (FIELD) << (START)); \
1050 continue; \
1051 }
1052
75c28b49 1053/* Simple range checking for FIELD againt HIGH and LOW bounds.
48153d49
JL		 1054 IGNORE is used to suppress the error message. */
1055
1056#define CHECK_FIELD(FIELD, HIGH, LOW, IGNORE) \
1057 { \
1058 if ((FIELD) > (HIGH) || (FIELD) < (LOW)) \
1059 { \
1060 if (! IGNORE) \
1061 as_bad ("Field out of range [%d..%d] (%d).", (LOW), (HIGH), \
1062 (int) (FIELD));\
1063 break; \
1064 } \
1065 }
c5e9ccd0 1066
8f78d0e9
KR		 1067#define is_DP_relative(exp) \
1068 ((exp).X_op == O_subtract \
1069 && strcmp((exp).X_op_symbol->bsym->name, "$global$") == 0)
1070
1071#define is_PC_relative(exp) \
1072 ((exp).X_op == O_subtract \
1073 && strcmp((exp).X_op_symbol->bsym->name, "$PIC_pcrel$0") == 0)
1074
655f3ef4
JL		 1075/* We need some complex handling for stabs (sym1 - sym2). Luckily, we'll
1076 always be able to reduce the expression to a constant, so we don't
1077 need real complex handling yet. */
1078#define is_complex(exp) \
1079 ((exp).X_op != O_constant && (exp).X_op != O_symbol)
1080
8f78d0e9
KR		 1081/* Actual functions to implement the PA specific code for the assembler. */
1082
60937ce7
JL		 1083/* Called before writing the object file. Make sure entry/exit and
1084 proc/procend pairs match. */
1085
1086void
1087pa_check_eof ()
1088{
1089 if (within_entry_exit)
1090 as_fatal ("Missing .exit\n");
1091
1092 if (within_procedure)
1093 as_fatal ("Missing .procend\n");
1094}
1095
1096/* Check to make sure we have a valid space and subspace. */
1097
1098static void
1099pa_check_current_space_and_subspace ()
1100{
1101 if (current_space == NULL)
1102 as_fatal ("Not in a space.\n");
1103
1104 if (current_subspace == NULL)
1105 as_fatal ("Not in a subspace.\n");
1106}
1107
8f78d0e9
KR		 1108/* Returns a pointer to the label_symbol_struct for the current space.
1109 or NULL if no label_symbol_struct exists for the current space. */
1110
1111static label_symbol_struct *
1112pa_get_label ()
1113{
1114 label_symbol_struct *label_chain;
3b9a72c5 1115 sd_chain_struct *space_chain = current_space;
025b0302 1116
8f78d0e9
KR		 1117 for (label_chain = label_symbols_rootp;
1118 label_chain;
1119 label_chain = label_chain->lss_next)
1120 if (space_chain == label_chain->lss_space && label_chain->lss_label)
1121 return label_chain;
025b0302 1122
8f78d0e9
KR		 1123 return NULL;
1124}
025b0302 1125
8f78d0e9
KR		 1126/* Defines a label for the current space. If one is already defined,
1127 this function will replace it with the new label. */
025b0302 1128
8f78d0e9
KR		 1129void
1130pa_define_label (symbol)
1131 symbolS *symbol;
1132{
1133 label_symbol_struct *label_chain = pa_get_label ();
3b9a72c5 1134 sd_chain_struct *space_chain = current_space;
8f78d0e9
KR		 1135
1136 if (label_chain)
1137 label_chain->lss_label = symbol;
1138 else
1139 {
1140 /* Create a new label entry and add it to the head of the chain. */
1141 label_chain
1142 = (label_symbol_struct *) xmalloc (sizeof (label_symbol_struct));
1143 label_chain->lss_label = symbol;
1144 label_chain->lss_space = space_chain;
1145 label_chain->lss_next = NULL;
1146
1147 if (label_symbols_rootp)
1148 label_chain->lss_next = label_symbols_rootp;
1149
1150 label_symbols_rootp = label_chain;
1151 }
1152}
1153
1154/* Removes a label definition for the current space.
1155 If there is no label_symbol_struct entry, then no action is taken. */
1156
1157static void
1158pa_undefine_label ()
1159{
1160 label_symbol_struct *label_chain;
1161 label_symbol_struct *prev_label_chain = NULL;
3b9a72c5 1162 sd_chain_struct *space_chain = current_space;
8f78d0e9
KR		 1163
1164 for (label_chain = label_symbols_rootp;
1165 label_chain;
1166 label_chain = label_chain->lss_next)
1167 {
1168 if (space_chain == label_chain->lss_space && label_chain->lss_label)
1169 {
1170 /* Remove the label from the chain and free its memory. */
1171 if (prev_label_chain)
1172 prev_label_chain->lss_next = label_chain->lss_next;
1173 else
1174 label_symbols_rootp = label_chain->lss_next;
1175
1176 free (label_chain);
1177 break;
1178 }
1179 prev_label_chain = label_chain;
1180 }
1181}
1182
1183
1184/* An HPPA-specific version of fix_new. This is required because the HPPA
1185 code needs to keep track of some extra stuff. Each call to fix_new_hppa
1186 results in the creation of an instance of an hppa_fix_struct. An
1187 hppa_fix_struct stores the extra information along with a pointer to the
75c28b49 1188 original fixS. This is attached to the original fixup via the
aa8b30ed 1189 tc_fix_data field. */
8f78d0e9
KR		 1190
1191static void
1192fix_new_hppa (frag, where, size, add_symbol, offset, exp, pcrel,
75c28b49 1193 r_type, r_field, r_format, arg_reloc, unwind_bits)
8f78d0e9
KR		 1194 fragS *frag;
1195 int where;
de3ffc7a 1196 int size;
8f78d0e9
KR		 1197 symbolS *add_symbol;
1198 long offset;
1199 expressionS *exp;
1200 int pcrel;
1201 bfd_reloc_code_real_type r_type;
ac866582 1202 enum hppa_reloc_field_selector_type_alt r_field;
8f78d0e9
KR		 1203 int r_format;
1204 long arg_reloc;
75c28b49 1205 int* unwind_bits;
8f78d0e9
KR		 1206{
1207 fixS *new_fix;
1208
1209 struct hppa_fix_struct *hppa_fix = (struct hppa_fix_struct *)
c5e9ccd0 1210 obstack_alloc (&notes, sizeof (struct hppa_fix_struct));
8f78d0e9
KR		 1211
1212 if (exp != NULL)
1213 new_fix = fix_new_exp (frag, where, size, exp, pcrel, r_type);
1214 else
1215 new_fix = fix_new (frag, where, size, add_symbol, offset, pcrel, r_type);
fb338f1d 1216 new_fix->tc_fix_data = (void *) hppa_fix;
8f78d0e9
KR		 1217 hppa_fix->fx_r_type = r_type;
1218 hppa_fix->fx_r_field = r_field;
1219 hppa_fix->fx_r_format = r_format;
1220 hppa_fix->fx_arg_reloc = arg_reloc;
fca59f9d 1221 hppa_fix->segment = now_seg;
75c28b49
JL		 1222#ifdef OBJ_SOM
1223 if (r_type == R_ENTRY || r_type == R_EXIT)
e67b3aa3 1224 new_fix->fx_offset = *unwind_bits;
ff852e11 1225#endif
25989392
JL		 1226
1227 /* foo-$global$ is used to access non-automatic storage. $global$
1228 is really just a marker and has served its purpose, so eliminate
1229 it now so as not to confuse write.c. */
81413fa2
JL		 1230 if (new_fix->fx_subsy
1231 && !strcmp (S_GET_NAME (new_fix->fx_subsy), "$global$"))
25989392 1232 new_fix->fx_subsy = NULL;
025b0302
ME		 1233}
1234
1235/* Parse a .byte, .word, .long expression for the HPPA. Called by
1236 cons via the TC_PARSE_CONS_EXPRESSION macro. */
1237
025b0302
ME		 1238void
1239parse_cons_expression_hppa (exp)
1240 expressionS *exp;
1241{
1242 hppa_field_selector = pa_chk_field_selector (&input_line_pointer);
5cf4cd1b 1243 expression (exp);
025b0302
ME		 1244}
1245
1246/* This fix_new is called by cons via TC_CONS_FIX_NEW.
1247 hppa_field_selector is set by the parse_cons_expression_hppa. */
1248
1249void
1250cons_fix_new_hppa (frag, where, size, exp)
8f78d0e9
KR		 1251 fragS *frag;
1252 int where;
1253 int size;
1254 expressionS *exp;
025b0302 1255{
4047ff1d 1256 unsigned int rel_type;
025b0302 1257
8fb99170 1258 /* Get a base relocation type. */
025b0302 1259 if (is_DP_relative (*exp))
4047ff1d 1260 rel_type = R_HPPA_GOTOFF;
655f3ef4 1261 else if (is_complex (*exp))
8fb99170 1262 rel_type = R_HPPA_COMPLEX;
025b0302 1263 else
4047ff1d 1264 rel_type = R_HPPA;
025b0302 1265
ac866582 1266 if (hppa_field_selector != e_psel && hppa_field_selector != e_fsel)
8f78d0e9 1267 as_warn ("Invalid field selector. Assuming F%%.");
025b0302 1268
5cf4cd1b 1269 fix_new_hppa (frag, where, size,
4047ff1d 1270 (symbolS *) NULL, (offsetT) 0, exp, 0, rel_type,
75c28b49 1271 hppa_field_selector, 32, 0, NULL);
1cc248d2
JL		 1272
1273 /* Reset field selector to its default state. */
1274 hppa_field_selector = 0;
025b0302
ME		 1275}
1276
1277/* This function is called once, at assembler startup time. It should
1278 set up all the tables, etc. that the MD part of the assembler will need. */
8f78d0e9 1279
025b0302
ME		 1280void
1281md_begin ()
1282{
18c4f112 1283 const char *retval = NULL;
025b0302 1284 int lose = 0;
8f78d0e9 1285 unsigned int i = 0;
025b0302
ME		 1286
1287 last_call_info = NULL;
1288 call_info_root = NULL;
1289
4829cd65
JL		 1290 /* Set the default machine type. */
1291 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 10))
1292 as_warn ("could not set architecture and machine");
1293
13925cef
JL		 1294 /* Folding of text and data segments fails miserably on the PA.
1295 Warn user and disable "-R" option. */
def66e24 1296 if (flag_readonly_data_in_text)
d56f45f5
JL		 1297 {
1298 as_warn ("-R option not supported on this target.");
def66e24 1299 flag_readonly_data_in_text = 0;
d56f45f5 1300 }
13925cef 1301
025b0302
ME		 1302 pa_spaces_begin ();
1303
1304 op_hash = hash_new ();
025b0302
ME		 1305
1306 while (i < NUMOPCODES)
1307 {
1308 const char *name = pa_opcodes[i].name;
c5e9ccd0 1309 retval = hash_insert (op_hash, name, (struct pa_opcode *) &pa_opcodes[i]);
8f78d0e9 1310 if (retval != NULL && *retval != '\0')
025b0302 1311 {
8f78d0e9 1312 as_fatal ("Internal error: can't hash `%s': %s\n", name, retval);
025b0302
ME		 1313 lose = 1;
1314 }
1315 do
1316 {
c5e9ccd0 1317 if ((pa_opcodes[i].match & pa_opcodes[i].mask)
8f78d0e9 1318 != pa_opcodes[i].match)
025b0302
ME		 1319 {
1320 fprintf (stderr, "internal error: losing opcode: `%s' \"%s\"\n",
1321 pa_opcodes[i].name, pa_opcodes[i].args);
1322 lose = 1;
1323 }
1324 ++i;
1325 }
8f78d0e9 1326 while (i < NUMOPCODES && !strcmp (pa_opcodes[i].name, name));
025b0302
ME		 1327 }
1328
1329 if (lose)
1330 as_fatal ("Broken assembler. No assembly attempted.");
3b9a72c5
JL		 1331
1332 /* SOM will change text_section. To make sure we never put
1333 anything into the old one switch to the new one now. */
1334 subseg_set (text_section, 0);
8f78d0e9 1335
6868afe6 1336 dummy_symbol = symbol_find_or_make ("L$dummy");
fca59f9d 1337 S_SET_SEGMENT (dummy_symbol, text_section);
025b0302
ME		 1338}
1339
8f78d0e9 1340/* Assemble a single instruction storing it into a frag. */
025b0302
ME		 1341void
1342md_assemble (str)
1343 char *str;
1344{
8f78d0e9 1345 char *to;
025b0302 1346
8f78d0e9 1347 /* The had better be something to assemble. */
025b0302 1348 assert (str);
8f78d0e9 1349
4047ff1d
JL		 1350 /* If we are within a procedure definition, make sure we've
1351 defined a label for the procedure; handle case where the
75c28b49 1352 label was defined after the .PROC directive.
86066d06
JL		 1353
1354 Note there's not need to diddle with the segment or fragment
1355 for the label symbol in this case. We have already switched
1356 into the new $CODE$ subspace at this point. */
4047ff1d
JL		 1357 if (within_procedure && last_call_info->start_symbol == NULL)
1358 {
1359 label_symbol_struct *label_symbol = pa_get_label ();
1360
1361 if (label_symbol)
1362 {
1363 if (label_symbol->lss_label)
1364 {
1365 last_call_info->start_symbol = label_symbol->lss_label;
1366 label_symbol->lss_label->bsym->flags |= BSF_FUNCTION;
86066d06
JL		 1367#ifdef OBJ_SOM
1368 /* Also handle allocation of a fixup to hold the unwind
1369 information when the label appears after the proc/procend. */
1370 if (within_entry_exit)
1371 {
1372 char *where = frag_more (0);
1373
1374 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
75c28b49 1375 NULL, (offsetT) 0, NULL,
86066d06 1376 0, R_HPPA_ENTRY, e_fsel, 0, 0,
75c28b49 1377 (int *)&last_call_info->ci_unwind.descriptor);
86066d06
JL		 1378 }
1379#endif
4047ff1d
JL		 1380 }
1381 else
1382 as_bad ("Missing function name for .PROC (corrupted label chain)");
1383 }
1384 else
1385 as_bad ("Missing function name for .PROC");
1386 }
1387
8f78d0e9 1388 /* Assemble the instruction. Results are saved into "the_insn". */
025b0302 1389 pa_ip (str);
025b0302 1390
8f78d0e9
KR		 1391 /* Get somewhere to put the assembled instrution. */
1392 to = frag_more (4);
025b0302 1393
8f78d0e9
KR		 1394 /* Output the opcode. */
1395 md_number_to_chars (to, the_insn.opcode, 4);
025b0302 1396
8f78d0e9 1397 /* If necessary output more stuff. */
aa8b30ed 1398 if (the_insn.reloc != R_HPPA_NONE)
8f78d0e9
KR		 1399 fix_new_hppa (frag_now, (to - frag_now->fr_literal), 4, NULL,
1400 (offsetT) 0, &the_insn.exp, the_insn.pcrel,
1401 the_insn.reloc, the_insn.field_selector,
1402 the_insn.format, the_insn.arg_reloc, NULL);
8f78d0e9 1403}
025b0302 1404
8f78d0e9 1405/* Do the real work for assembling a single instruction. Store results
dd2f509f 1406 into the global "the_insn" variable. */
025b0302
ME		 1407
1408static void
1409pa_ip (str)
1410 char *str;
1411{
1412 char *error_message = "";
8f78d0e9 1413 char *s, c, *argstart, *name, *save_s;
025b0302 1414 const char *args;
025b0302
ME		 1415 int match = FALSE;
1416 int comma = 0;
48153d49
JL		 1417 int cmpltr, nullif, flag, cond, num;
1418 unsigned long opcode;
8f78d0e9 1419 struct pa_opcode *insn;
025b0302 1420
60937ce7
JL		 1421 /* We must have a valid space and subspace. */
1422 pa_check_current_space_and_subspace ();
1423
8f78d0e9 1424 /* Skip to something interesting. */
025b0302
ME		 1425 for (s = str; isupper (*s) || islower (*s) || (*s >= '0' && *s <= '3'); ++s)
1426 ;
8f78d0e9 1427
025b0302
ME		 1428 switch (*s)
1429 {
1430
1431 case '\0':
1432 break;
1433
1434 case ',':
1435 comma = 1;
1436
8f78d0e9 1437 /*FALLTHROUGH */
025b0302
ME		 1438
1439 case ' ':
1440 *s++ = '\0';
1441 break;
1442
1443 default:
460531da 1444 as_fatal ("Unknown opcode: `%s'", str);
025b0302
ME		 1445 }
1446
1447 save_s = str;
1448
8f78d0e9 1449 /* Convert everything into lower case. */
025b0302
ME		 1450 while (*save_s)
1451 {
1452 if (isupper (*save_s))
1453 *save_s = tolower (*save_s);
1454 save_s++;
1455 }
1456
8f78d0e9 1457 /* Look up the opcode in the has table. */
025b0302
ME		 1458 if ((insn = (struct pa_opcode *) hash_find (op_hash, str)) == NULL)
1459 {
1460 as_bad ("Unknown opcode: `%s'", str);
1461 return;
1462 }
8f78d0e9 1463
025b0302
ME		 1464 if (comma)
1465 {
1466 *--s = ',';
1467 }
8f78d0e9
KR		 1468
1469 /* Mark the location where arguments for the instruction start, then
1470 start processing them. */
1471 argstart = s;
025b0302
ME		 1472 for (;;)
1473 {
8f78d0e9 1474 /* Do some initialization. */
025b0302
ME		 1475 opcode = insn->match;
1476 bzero (&the_insn, sizeof (the_insn));
8f78d0e9 1477
025b0302 1478 the_insn.reloc = R_HPPA_NONE;
8f78d0e9 1479
4829cd65
JL		 1480 /* If this instruction is specific to a particular architecture,
1481 then set a new architecture. */
1482 if (bfd_get_mach (stdoutput) < insn->arch)
1483 {
1484 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, insn->arch))
1485 as_warn ("could not update architecture and machine");
1486 }
1487
8f78d0e9
KR		 1488 /* Build the opcode, checking as we go to make
1489 sure that the operands match. */
025b0302
ME		 1490 for (args = insn->args;; ++args)
1491 {
025b0302
ME		 1492 switch (*args)
1493 {
1494
8f78d0e9
KR		 1495 /* End of arguments. */
1496 case '\0':
025b0302 1497 if (*s == '\0')
8f78d0e9 1498 match = TRUE;
025b0302
ME		 1499 break;
1500
1501 case '+':
1502 if (*s == '+')
1503 {
1504 ++s;
1505 continue;
1506 }
1507 if (*s == '-')
8f78d0e9 1508 continue;
025b0302
ME		 1509 break;
1510
8f78d0e9
KR		 1511 /* These must match exactly. */
1512 case '(':
025b0302
ME		 1513 case ')':
1514 case ',':
1515 case ' ':
1516 if (*s++ == *args)
1517 continue;
1518 break;
1519
8f78d0e9
KR		 1520 /* Handle a 5 bit register or control register field at 10. */
1521 case 'b':
1522 case '^':
48153d49
JL		 1523 num = pa_parse_number (&s, 0);
1524 CHECK_FIELD (num, 31, 0, 0);
1525 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
8f78d0e9
KR		 1526
1527 /* Handle a 5 bit register field at 15. */
1528 case 'x':
48153d49
JL		 1529 num = pa_parse_number (&s, 0);
1530 CHECK_FIELD (num, 31, 0, 0);
1531 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
5cf4cd1b 1532
8f78d0e9
KR		 1533 /* Handle a 5 bit register field at 31. */
1534 case 'y':
1535 case 't':
48153d49
JL		 1536 num = pa_parse_number (&s, 0);
1537 CHECK_FIELD (num, 31, 0, 0);
1538 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
8f78d0e9
KR		 1539
1540 /* Handle a 5 bit field length at 31. */
1541 case 'T':
48153d49
JL		 1542 num = pa_get_absolute_expression (&the_insn, &s);
1543 s = expr_end;
1544 CHECK_FIELD (num, 32, 1, 0);
1545 INSERT_FIELD_AND_CONTINUE (opcode, 32 - num, 0);
8f78d0e9
KR		 1546
1547 /* Handle a 5 bit immediate at 15. */
1548 case '5':
48153d49
JL		 1549 num = pa_get_absolute_expression (&the_insn, &s);
1550 s = expr_end;
1551 CHECK_FIELD (num, 15, -16, 0);
1552 low_sign_unext (num, 5, &num);
1553 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
025b0302 1554
48153d49
JL		 1555 /* Handle a 5 bit immediate at 31. */
1556 case 'V':
1557 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 1558 s = expr_end;
48153d49 1559 CHECK_FIELD (num, 15, -16, 0)
c5e9ccd0 1560 low_sign_unext (num, 5, &num);
48153d49
JL		 1561 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
1562
1563 /* Handle an unsigned 5 bit immediate at 31. */
1564 case 'r':
1565 num = pa_get_absolute_expression (&the_insn, &s);
1566 s = expr_end;
1567 CHECK_FIELD (num, 31, 0, 0);
1568 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
1569
1570 /* Handle an unsigned 5 bit immediate at 15. */
1571 case 'R':
1572 num = pa_get_absolute_expression (&the_insn, &s);
1573 s = expr_end;
1574 CHECK_FIELD (num, 31, 0, 0);
1575 INSERT_FIELD_AND_CONTINUE (opcode, num, 16);
025b0302 1576
8f78d0e9
KR		 1577 /* Handle a 2 bit space identifier at 17. */
1578 case 's':
48153d49
JL		 1579 num = pa_parse_number (&s, 0);
1580 CHECK_FIELD (num, 3, 0, 1);
1581 INSERT_FIELD_AND_CONTINUE (opcode, num, 14);
8f78d0e9
KR		 1582
1583 /* Handle a 3 bit space identifier at 18. */
1584 case 'S':
48153d49
JL		 1585 num = pa_parse_number (&s, 0);
1586 CHECK_FIELD (num, 7, 0, 1);
1587 dis_assemble_3 (num, &num);
1588 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
8f78d0e9
KR		 1589
1590 /* Handle a completer for an indexing load or store. */
1591 case 'c':
48153d49
JL		 1592 {
1593 int uu = 0;
1594 int m = 0;
1595 int i = 0;
1596 while (*s == ',' && i < 2)
1597 {
1598 s++;
1599 if (strncasecmp (s, "sm", 2) == 0)
1600 {
1601 uu = 1;
1602 m = 1;
1603 s++;
1604 i++;
1605 }
1606 else if (strncasecmp (s, "m", 1) == 0)
025b0302 1607 m = 1;
48153d49
JL		 1608 else if (strncasecmp (s, "s", 1) == 0)
1609 uu = 1;
1610 else
1611 as_bad ("Invalid Indexed Load Completer.");
1612 s++;
1613 i++;
1614 }
1615 if (i > 2)
1616 as_bad ("Invalid Indexed Load Completer Syntax.");
1617 opcode |= m << 5;
1618 INSERT_FIELD_AND_CONTINUE (opcode, uu, 13);
1619 }
8f78d0e9
KR		 1620
1621 /* Handle a short load/store completer. */
1622 case 'C':
48153d49
JL		 1623 {
1624 int a = 0;
1625 int m = 0;
1626 if (*s == ',')
1627 {
1628 s++;
1629 if (strncasecmp (s, "ma", 2) == 0)
1630 {
1631 a = 0;
1632 m = 1;
1633 }
1634 else if (strncasecmp (s, "mb", 2) == 0)
1635 {
1636 a = 1;
1637 m = 1;
1638 }
1639 else
1640 as_bad ("Invalid Short Load/Store Completer.");
1641 s += 2;
1642 }
1643 opcode |= m << 5;
1644 INSERT_FIELD_AND_CONTINUE (opcode, a, 13);
1645 }
8f78d0e9
KR		 1646
1647 /* Handle a stbys completer. */
1648 case 'Y':
48153d49
JL		 1649 {
1650 int a = 0;
1651 int m = 0;
1652 int i = 0;
1653 while (*s == ',' && i < 2)
1654 {
1655 s++;
1656 if (strncasecmp (s, "m", 1) == 0)
1657 m = 1;
1658 else if (strncasecmp (s, "b", 1) == 0)
1659 a = 0;
1660 else if (strncasecmp (s, "e", 1) == 0)
1661 a = 1;
1662 else
1663 as_bad ("Invalid Store Bytes Short Completer");
1664 s++;
1665 i++;
1666 }
1667 if (i > 2)
1668 as_bad ("Invalid Store Bytes Short Completer");
1669 opcode |= m << 5;
1670 INSERT_FIELD_AND_CONTINUE (opcode, a, 13);
1671 }
8f78d0e9
KR		 1672
1673 /* Handle a non-negated compare/stubtract condition. */
1674 case '<':
5cf4cd1b 1675 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 1);
025b0302
ME		 1676 if (cmpltr < 0)
1677 {
8f78d0e9 1678 as_bad ("Invalid Compare/Subtract Condition: %c", *s);
025b0302
ME		 1679 cmpltr = 0;
1680 }
48153d49 1681 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9
KR		 1682
1683 /* Handle a negated or non-negated compare/subtract condition. */
1684 case '?':
025b0302 1685 save_s = s;
5cf4cd1b 1686 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 1);
025b0302
ME		 1687 if (cmpltr < 0)
1688 {
1689 s = save_s;
5cf4cd1b 1690 cmpltr = pa_parse_neg_cmpsub_cmpltr (&s, 1);
025b0302
ME		 1691 if (cmpltr < 0)
1692 {
8f78d0e9 1693 as_bad ("Invalid Compare/Subtract Condition.");
025b0302
ME		 1694 cmpltr = 0;
1695 }
1696 else
1697 {
8f78d0e9
KR		 1698 /* Negated condition requires an opcode change. */
1699 opcode |= 1 << 27;
025b0302
ME		 1700 }
1701 }
48153d49 1702 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9 1703
e03095c9 1704 /* Handle non-negated add condition. */
8f78d0e9 1705 case '!':
e03095c9
JL		 1706 cmpltr = pa_parse_nonneg_add_cmpltr (&s, 1);
1707 if (cmpltr < 0)
1708 {
1709 as_bad ("Invalid Compare/Subtract Condition: %c", *s);
1710 cmpltr = 0;
1711 }
1712 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
1713
1714 /* Handle a negated or non-negated add condition. */
1715 case '@':
025b0302 1716 save_s = s;
5cf4cd1b 1717 cmpltr = pa_parse_nonneg_add_cmpltr (&s, 1);
025b0302
ME		 1718 if (cmpltr < 0)
1719 {
1720 s = save_s;
5cf4cd1b 1721 cmpltr = pa_parse_neg_add_cmpltr (&s, 1);
025b0302
ME		 1722 if (cmpltr < 0)
1723 {
8f78d0e9 1724 as_bad ("Invalid Compare/Subtract Condition");
025b0302
ME		 1725 cmpltr = 0;
1726 }
1727 else
1728 {
8f78d0e9
KR		 1729 /* Negated condition requires an opcode change. */
1730 opcode |= 1 << 27;
025b0302
ME		 1731 }
1732 }
48153d49 1733 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9
KR		 1734
1735 /* Handle a compare/subtract condition. */
1736 case 'a':
025b0302 1737 cmpltr = 0;
8f78d0e9 1738 flag = 0;
025b0302
ME		 1739 save_s = s;
1740 if (*s == ',')
1741 {
5cf4cd1b 1742 cmpltr = pa_parse_nonneg_cmpsub_cmpltr (&s, 0);
025b0302
ME		 1743 if (cmpltr < 0)
1744 {
8f78d0e9 1745 flag = 1;
025b0302 1746 s = save_s;
5cf4cd1b 1747 cmpltr = pa_parse_neg_cmpsub_cmpltr (&s, 0);
025b0302
ME		 1748 if (cmpltr < 0)
1749 {
8f78d0e9 1750 as_bad ("Invalid Compare/Subtract Condition");
025b0302
ME		 1751 }
1752 }
1753 }
1754 opcode |= cmpltr << 13;
48153d49 1755 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
8f78d0e9
KR		 1756
1757 /* Handle a non-negated add condition. */
1758 case 'd':
025b0302
ME		 1759 cmpltr = 0;
1760 nullif = 0;
1761 flag = 0;
1762 if (*s == ',')
1763 {
1764 s++;
1765 name = s;
1766 while (*s != ',' && *s != ' ' && *s != '\t')
1767 s += 1;
1768 c = *s;
1769 *s = 0x00;
1770 if (strcmp (name, "=") == 0)
8f78d0e9 1771 cmpltr = 1;
025b0302 1772 else if (strcmp (name, "<") == 0)
8f78d0e9 1773 cmpltr = 2;
025b0302 1774 else if (strcmp (name, "<=") == 0)
8f78d0e9 1775 cmpltr = 3;
025b0302 1776 else if (strcasecmp (name, "nuv") == 0)
8f78d0e9 1777 cmpltr = 4;
025b0302 1778 else if (strcasecmp (name, "znv") == 0)
8f78d0e9 1779 cmpltr = 5;
025b0302 1780 else if (strcasecmp (name, "sv") == 0)
8f78d0e9 1781 cmpltr = 6;
025b0302 1782 else if (strcasecmp (name, "od") == 0)
8f78d0e9 1783 cmpltr = 7;
025b0302 1784 else if (strcasecmp (name, "n") == 0)
8f78d0e9 1785 nullif = 1;
025b0302
ME		 1786 else if (strcasecmp (name, "tr") == 0)
1787 {
1788 cmpltr = 0;
1789 flag = 1;
1790 }
4047ff1d 1791 else if (strcmp (name, "<>") == 0)
025b0302
ME		 1792 {
1793 cmpltr = 1;
1794 flag = 1;
1795 }
4047ff1d 1796 else if (strcmp (name, ">=") == 0)
025b0302
ME		 1797 {
1798 cmpltr = 2;
1799 flag = 1;
1800 }
4047ff1d 1801 else if (strcmp (name, ">") == 0)
025b0302
ME		 1802 {
1803 cmpltr = 3;
1804 flag = 1;
1805 }
1806 else if (strcasecmp (name, "uv") == 0)
1807 {
1808 cmpltr = 4;
1809 flag = 1;
1810 }
1811 else if (strcasecmp (name, "vnz") == 0)
1812 {
1813 cmpltr = 5;
1814 flag = 1;
1815 }
1816 else if (strcasecmp (name, "nsv") == 0)
1817 {
1818 cmpltr = 6;
1819 flag = 1;
1820 }
1821 else if (strcasecmp (name, "ev") == 0)
1822 {
1823 cmpltr = 7;
1824 flag = 1;
1825 }
1826 else
8f78d0e9 1827 as_bad ("Invalid Add Condition: %s", name);
025b0302
ME		 1828 *s = c;
1829 }
1830 nullif = pa_parse_nullif (&s);
1831 opcode |= nullif << 1;
1832 opcode |= cmpltr << 13;
48153d49 1833 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
8f78d0e9 1834
48153d49 1835 /* HANDLE a logical instruction condition. */
8f78d0e9 1836 case '&':
025b0302 1837 cmpltr = 0;
8f78d0e9 1838 flag = 0;
025b0302
ME		 1839 if (*s == ',')
1840 {
1841 s++;
1842 name = s;
1843 while (*s != ',' && *s != ' ' && *s != '\t')
1844 s += 1;
1845 c = *s;
1846 *s = 0x00;
1847 if (strcmp (name, "=") == 0)
8f78d0e9 1848 cmpltr = 1;
025b0302 1849 else if (strcmp (name, "<") == 0)
8f78d0e9 1850 cmpltr = 2;
025b0302 1851 else if (strcmp (name, "<=") == 0)
8f78d0e9 1852 cmpltr = 3;
025b0302 1853 else if (strcasecmp (name, "od") == 0)
8f78d0e9 1854 cmpltr = 7;
025b0302
ME		 1855 else if (strcasecmp (name, "tr") == 0)
1856 {
1857 cmpltr = 0;
8f78d0e9 1858 flag = 1;
025b0302
ME		 1859 }
1860 else if (strcmp (name, "<>") == 0)
1861 {
1862 cmpltr = 1;
8f78d0e9 1863 flag = 1;
025b0302
ME		 1864 }
1865 else if (strcmp (name, ">=") == 0)
1866 {
1867 cmpltr = 2;
8f78d0e9 1868 flag = 1;
025b0302
ME		 1869 }
1870 else if (strcmp (name, ">") == 0)
1871 {
1872 cmpltr = 3;
8f78d0e9 1873 flag = 1;
025b0302
ME		 1874 }
1875 else if (strcasecmp (name, "ev") == 0)
1876 {
1877 cmpltr = 7;
8f78d0e9 1878 flag = 1;
025b0302
ME		 1879 }
1880 else
8f78d0e9 1881 as_bad ("Invalid Logical Instruction Condition.");
025b0302
ME		 1882 *s = c;
1883 }
1884 opcode |= cmpltr << 13;
48153d49 1885 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
8f78d0e9
KR		 1886
1887 /* Handle a unit instruction condition. */
1888 case 'U':
025b0302 1889 cmpltr = 0;
8f78d0e9 1890 flag = 0;
025b0302
ME		 1891 if (*s == ',')
1892 {
1893 s++;
1894 if (strncasecmp (s, "sbz", 3) == 0)
1895 {
1896 cmpltr = 2;
1897 s += 3;
1898 }
1899 else if (strncasecmp (s, "shz", 3) == 0)
1900 {
1901 cmpltr = 3;
1902 s += 3;
1903 }
1904 else if (strncasecmp (s, "sdc", 3) == 0)
1905 {
1906 cmpltr = 4;
1907 s += 3;
1908 }
1909 else if (strncasecmp (s, "sbc", 3) == 0)
1910 {
1911 cmpltr = 6;
1912 s += 3;
1913 }
1914 else if (strncasecmp (s, "shc", 3) == 0)
1915 {
1916 cmpltr = 7;
1917 s += 3;
1918 }
1919 else if (strncasecmp (s, "tr", 2) == 0)
1920 {
1921 cmpltr = 0;
8f78d0e9 1922 flag = 1;
025b0302
ME		 1923 s += 2;
1924 }
1925 else if (strncasecmp (s, "nbz", 3) == 0)
1926 {
1927 cmpltr = 2;
8f78d0e9 1928 flag = 1;
025b0302
ME		 1929 s += 3;
1930 }
1931 else if (strncasecmp (s, "nhz", 3) == 0)
1932 {
1933 cmpltr = 3;
8f78d0e9 1934 flag = 1;
025b0302
ME		 1935 s += 3;
1936 }
1937 else if (strncasecmp (s, "ndc", 3) == 0)
1938 {
1939 cmpltr = 4;
8f78d0e9 1940 flag = 1;
025b0302
ME		 1941 s += 3;
1942 }
1943 else if (strncasecmp (s, "nbc", 3) == 0)
1944 {
1945 cmpltr = 6;
8f78d0e9 1946 flag = 1;
025b0302
ME		 1947 s += 3;
1948 }
1949 else if (strncasecmp (s, "nhc", 3) == 0)
1950 {
1951 cmpltr = 7;
8f78d0e9 1952 flag = 1;
025b0302
ME		 1953 s += 3;
1954 }
1955 else
8f78d0e9 1956 as_bad ("Invalid Logical Instruction Condition.");
025b0302
ME		 1957 }
1958 opcode |= cmpltr << 13;
48153d49 1959 INSERT_FIELD_AND_CONTINUE (opcode, flag, 12);
8f78d0e9
KR		 1960
1961 /* Handle a shift/extract/deposit condition. */
1962 case '|':
1963 case '>':
025b0302
ME		 1964 cmpltr = 0;
1965 if (*s == ',')
1966 {
8f78d0e9 1967 save_s = s++;
025b0302
ME		 1968 name = s;
1969 while (*s != ',' && *s != ' ' && *s != '\t')
1970 s += 1;
1971 c = *s;
1972 *s = 0x00;
1973 if (strcmp (name, "=") == 0)
8f78d0e9 1974 cmpltr = 1;
025b0302 1975 else if (strcmp (name, "<") == 0)
8f78d0e9 1976 cmpltr = 2;
025b0302 1977 else if (strcasecmp (name, "od") == 0)
8f78d0e9 1978 cmpltr = 3;
025b0302 1979 else if (strcasecmp (name, "tr") == 0)
8f78d0e9 1980 cmpltr = 4;
025b0302 1981 else if (strcmp (name, "<>") == 0)
8f78d0e9 1982 cmpltr = 5;
025b0302 1983 else if (strcmp (name, ">=") == 0)
8f78d0e9 1984 cmpltr = 6;
025b0302 1985 else if (strcasecmp (name, "ev") == 0)
8f78d0e9 1986 cmpltr = 7;
75c28b49 1987 /* Handle movb,n. Put things back the way they were.
5cf4cd1b
KR		 1988 This includes moving s back to where it started. */
1989 else if (strcasecmp (name, "n") == 0 && *args == '|')
1990 {
1991 *s = c;
1992 s = save_s;
1993 continue;
1994 }
025b0302 1995 else
8f78d0e9 1996 as_bad ("Invalid Shift/Extract/Deposit Condition.");
025b0302
ME		 1997 *s = c;
1998 }
48153d49 1999 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9
KR		 2000
2001 /* Handle bvb and bb conditions. */
2002 case '~':
025b0302
ME		 2003 cmpltr = 0;
2004 if (*s == ',')
2005 {
2006 s++;
2007 if (strncmp (s, "<", 1) == 0)
2008 {
2009 cmpltr = 2;
2010 s++;
2011 }
2012 else if (strncmp (s, ">=", 2) == 0)
2013 {
2014 cmpltr = 6;
2015 s += 2;
2016 }
2017 else
8f78d0e9 2018 as_bad ("Invalid Bit Branch Condition: %c", *s);
025b0302 2019 }
48153d49 2020 INSERT_FIELD_AND_CONTINUE (opcode, cmpltr, 13);
8f78d0e9 2021
48153d49
JL		 2022 /* Handle a system control completer. */
2023 case 'Z':
2024 if (*s == ',' && (*(s + 1) == 'm' || *(s + 1) == 'M'))
025b0302 2025 {
48153d49
JL		 2026 flag = 1;
2027 s += 2;
025b0302 2028 }
48153d49
JL		 2029 else
2030 flag = 0;
8f78d0e9 2031
48153d49
JL		 2032 INSERT_FIELD_AND_CONTINUE (opcode, flag, 5);
2033
2034 /* Handle a nullification completer for branch instructions. */
2035 case 'n':
2036 nullif = pa_parse_nullif (&s);
2037 INSERT_FIELD_AND_CONTINUE (opcode, nullif, 1);
8f78d0e9 2038
d0286a21
JL		 2039 /* Handle a nullification completer for copr and spop insns. */
2040 case 'N':
2041 nullif = pa_parse_nullif (&s);
2042 INSERT_FIELD_AND_CONTINUE (opcode, nullif, 5);
2043
8f78d0e9
KR		 2044 /* Handle a 11 bit immediate at 31. */
2045 case 'i':
2046 the_insn.field_selector = pa_chk_field_selector (&s);
2047 get_expression (s);
48153d49 2048 s = expr_end;
5cf4cd1b 2049 if (the_insn.exp.X_op == O_constant)
025b0302 2050 {
48153d49
JL		 2051 num = evaluate_absolute (&the_insn);
2052 CHECK_FIELD (num, 1023, -1024, 0);
2053 low_sign_unext (num, 11, &num);
2054 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
025b0302
ME		 2055 }
2056 else
2057 {
025b0302
ME		 2058 if (is_DP_relative (the_insn.exp))
2059 the_insn.reloc = R_HPPA_GOTOFF;
2060 else if (is_PC_relative (the_insn.exp))
2061 the_insn.reloc = R_HPPA_PCREL_CALL;
025b0302
ME		 2062 else
2063 the_insn.reloc = R_HPPA;
2064 the_insn.format = 11;
48153d49 2065 continue;
025b0302 2066 }
8f78d0e9
KR		 2067
2068 /* Handle a 14 bit immediate at 31. */
2069 case 'j':
025b0302 2070 the_insn.field_selector = pa_chk_field_selector (&s);
8f78d0e9 2071 get_expression (s);
48153d49 2072 s = expr_end;
5cf4cd1b 2073 if (the_insn.exp.X_op == O_constant)
025b0302 2074 {
48153d49
JL		 2075 num = evaluate_absolute (&the_insn);
2076 CHECK_FIELD (num, 8191, -8192, 0);
2077 low_sign_unext (num, 14, &num);
2078 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
025b0302
ME		 2079 }
2080 else
2081 {
2082 if (is_DP_relative (the_insn.exp))
2083 the_insn.reloc = R_HPPA_GOTOFF;
2084 else if (is_PC_relative (the_insn.exp))
2085 the_insn.reloc = R_HPPA_PCREL_CALL;
025b0302
ME		 2086 else
2087 the_insn.reloc = R_HPPA;
2088 the_insn.format = 14;
48153d49 2089 continue;
025b0302 2090 }
025b0302 2091
8f78d0e9
KR		 2092 /* Handle a 21 bit immediate at 31. */
2093 case 'k':
2094 the_insn.field_selector = pa_chk_field_selector (&s);
2095 get_expression (s);
48153d49 2096 s = expr_end;
5cf4cd1b 2097 if (the_insn.exp.X_op == O_constant)
025b0302 2098 {
48153d49 2099 num = evaluate_absolute (&the_insn);
c5e9ccd0 2100 CHECK_FIELD (num >> 11, 1048575, -1048576, 0);
48153d49
JL		 2101 dis_assemble_21 (num, &num);
2102 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
025b0302
ME		 2103 }
2104 else
2105 {
025b0302
ME		 2106 if (is_DP_relative (the_insn.exp))
2107 the_insn.reloc = R_HPPA_GOTOFF;
2108 else if (is_PC_relative (the_insn.exp))
2109 the_insn.reloc = R_HPPA_PCREL_CALL;
025b0302
ME		 2110 else
2111 the_insn.reloc = R_HPPA;
2112 the_insn.format = 21;
48153d49 2113 continue;
025b0302 2114 }
8f78d0e9
KR		 2115
2116 /* Handle a 12 bit branch displacement. */
2117 case 'w':
2118 the_insn.field_selector = pa_chk_field_selector (&s);
2119 get_expression (s);
48153d49 2120 s = expr_end;
025b0302 2121 the_insn.pcrel = 1;
48153d49 2122 if (!strcmp (S_GET_NAME (the_insn.exp.X_add_symbol), "L$0\001"))
025b0302
ME		 2123 {
2124 unsigned int w1, w, result;
2125
48153d49
JL		 2126 num = evaluate_absolute (&the_insn);
2127 if (num % 4)
2128 {
2129 as_bad ("Branch to unaligned address");
2130 break;
2131 }
83b59013 2132 CHECK_FIELD (num, 8199, -8184, 0);
48153d49 2133 sign_unext ((num - 8) >> 2, 12, &result);
025b0302 2134 dis_assemble_12 (result, &w1, &w);
48153d49 2135 INSERT_FIELD_AND_CONTINUE (opcode, ((w1 << 2) | w), 0);
025b0302
ME		 2136 }
2137 else
2138 {
3315c7c7 2139 the_insn.reloc = R_HPPA_PCREL_CALL;
025b0302
ME		 2140 the_insn.format = 12;
2141 the_insn.arg_reloc = last_call_desc.arg_reloc;
8f78d0e9 2142 bzero (&last_call_desc, sizeof (struct call_desc));
48153d49
JL		 2143 s = expr_end;
2144 continue;
025b0302 2145 }
8f78d0e9
KR		 2146
2147 /* Handle a 17 bit branch displacement. */
2148 case 'W':
025b0302 2149 the_insn.field_selector = pa_chk_field_selector (&s);
8f78d0e9 2150 get_expression (s);
48153d49 2151 s = expr_end;
025b0302 2152 the_insn.pcrel = 1;
c5e9ccd0 2153 if (!the_insn.exp.X_add_symbol
48153d49
JL		 2154 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
2155 "L$0\001"))
025b0302 2156 {
48153d49 2157 unsigned int w2, w1, w, result;
025b0302 2158
48153d49
JL		 2159 num = evaluate_absolute (&the_insn);
2160 if (num % 4)
025b0302 2161 {
48153d49
JL		 2162 as_bad ("Branch to unaligned address");
2163 break;
025b0302 2164 }
48153d49
JL		 2165 CHECK_FIELD (num, 262143, -262144, 0);
2166
2167 if (the_insn.exp.X_add_symbol)
2168 num -= 8;
2169
2170 sign_unext (num >> 2, 17, &result);
2171 dis_assemble_17 (result, &w1, &w2, &w);
2172 INSERT_FIELD_AND_CONTINUE (opcode,
c5e9ccd0 2173 ((w2 << 2) | (w1 << 16) | w), 0);
025b0302
ME		 2174 }
2175 else
2176 {
3315c7c7 2177 the_insn.reloc = R_HPPA_PCREL_CALL;
48153d49
JL		 2178 the_insn.format = 17;
2179 the_insn.arg_reloc = last_call_desc.arg_reloc;
2180 bzero (&last_call_desc, sizeof (struct call_desc));
2181 continue;
025b0302 2182 }
8f78d0e9
KR		 2183
2184 /* Handle an absolute 17 bit branch target. */
2185 case 'z':
025b0302 2186 the_insn.field_selector = pa_chk_field_selector (&s);
8f78d0e9 2187 get_expression (s);
48153d49 2188 s = expr_end;
025b0302 2189 the_insn.pcrel = 0;
c5e9ccd0 2190 if (!the_insn.exp.X_add_symbol
48153d49
JL		 2191 || !strcmp (S_GET_NAME (the_insn.exp.X_add_symbol),
2192 "L$0\001"))
025b0302 2193 {
48153d49 2194 unsigned int w2, w1, w, result;
c5e9ccd0 2195
48153d49
JL		 2196 num = evaluate_absolute (&the_insn);
2197 if (num % 4)
025b0302 2198 {
48153d49
JL		 2199 as_bad ("Branch to unaligned address");
2200 break;
025b0302 2201 }
48153d49
JL		 2202 CHECK_FIELD (num, 262143, -262144, 0);
2203
2204 if (the_insn.exp.X_add_symbol)
2205 num -= 8;
2206
2207 sign_unext (num >> 2, 17, &result);
2208 dis_assemble_17 (result, &w1, &w2, &w);
c5e9ccd0
JL		 2209 INSERT_FIELD_AND_CONTINUE (opcode,
2210 ((w2 << 2) | (w1 << 16) | w), 0);
025b0302
ME		 2211 }
2212 else
2213 {
44e8d616 2214 the_insn.reloc = R_HPPA_ABS_CALL;
48153d49 2215 the_insn.format = 17;
2c23d22b
JL		 2216 the_insn.arg_reloc = last_call_desc.arg_reloc;
2217 bzero (&last_call_desc, sizeof (struct call_desc));
48153d49 2218 continue;
025b0302 2219 }
8f78d0e9
KR		 2220
2221 /* Handle a 5 bit shift count at 26. */
2222 case 'p':
48153d49 2223 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2224 s = expr_end;
48153d49
JL		 2225 CHECK_FIELD (num, 31, 0, 0);
2226 INSERT_FIELD_AND_CONTINUE (opcode, 31 - num, 5);
8f78d0e9
KR		 2227
2228 /* Handle a 5 bit bit position at 26. */
2229 case 'P':
48153d49 2230 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2231 s = expr_end;
48153d49
JL		 2232 CHECK_FIELD (num, 31, 0, 0);
2233 INSERT_FIELD_AND_CONTINUE (opcode, num, 5);
8f78d0e9
KR		 2234
2235 /* Handle a 5 bit immediate at 10. */
2236 case 'Q':
48153d49 2237 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2238 s = expr_end;
48153d49
JL		 2239 CHECK_FIELD (num, 31, 0, 0);
2240 INSERT_FIELD_AND_CONTINUE (opcode, num, 21);
8f78d0e9
KR		 2241
2242 /* Handle a 13 bit immediate at 18. */
2243 case 'A':
48153d49 2244 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2245 s = expr_end;
3315c7c7 2246 CHECK_FIELD (num, 8191, 0, 0);
48153d49 2247 INSERT_FIELD_AND_CONTINUE (opcode, num, 13);
8f78d0e9
KR		 2248
2249 /* Handle a 26 bit immediate at 31. */
2250 case 'D':
48153d49 2251 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2252 s = expr_end;
48153d49 2253 CHECK_FIELD (num, 671108864, 0, 0);
b4682e51 2254 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
8f78d0e9
KR		 2255
2256 /* Handle a 3 bit SFU identifier at 25. */
2257 case 'f':
51517966
JL		 2258 if (*s++ != ',')
2259 as_bad ("Invalid SFU identifier");
48153d49
JL		 2260 num = pa_get_absolute_expression (&the_insn, &s);
2261 s = expr_end;
2262 CHECK_FIELD (num, 7, 0, 0);
2263 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
8f78d0e9 2264
d0286a21 2265 /* Handle a 20 bit SOP field for spop0. */
8f78d0e9 2266 case 'O':
d0286a21 2267 num = pa_get_absolute_expression (&the_insn, &s);
025b0302 2268 s = expr_end;
d0286a21
JL		 2269 CHECK_FIELD (num, 1048575, 0, 0);
2270 num = (num & 0x1f) | ((num & 0x000fffe0) << 6);
2271 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2272
2273 /* Handle a 15bit SOP field for spop1. */
2274 case 'o':
2275 num = pa_get_absolute_expression (&the_insn, &s);
2276 s = expr_end;
2277 CHECK_FIELD (num, 32767, 0, 0);
2278 INSERT_FIELD_AND_CONTINUE (opcode, num, 11);
2279
2280 /* Handle a 10bit SOP field for spop3. */
2281 case '0':
2282 num = pa_get_absolute_expression (&the_insn, &s);
2283 s = expr_end;
2284 CHECK_FIELD (num, 1023, 0, 0);
2285 num = (num & 0x1f) | ((num & 0x000003e0) << 6);
2286 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2287
2288 /* Handle a 15 bit SOP field for spop2. */
2289 case '1':
2290 num = pa_get_absolute_expression (&the_insn, &s);
2291 s = expr_end;
2292 CHECK_FIELD (num, 32767, 0, 0);
2293 num = (num & 0x1f) | ((num & 0x00007fe0) << 6);
2294 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
2295
2296 /* Handle a 3-bit co-processor ID field. */
2297 case 'u':
51517966
JL		 2298 if (*s++ != ',')
2299 as_bad ("Invalid COPR identifier");
d0286a21
JL		 2300 num = pa_get_absolute_expression (&the_insn, &s);
2301 s = expr_end;
2302 CHECK_FIELD (num, 7, 0, 0);
2303 INSERT_FIELD_AND_CONTINUE (opcode, num, 6);
2304
2305 /* Handle a 22bit SOP field for copr. */
2306 case '2':
2307 num = pa_get_absolute_expression (&the_insn, &s);
2308 s = expr_end;
2309 CHECK_FIELD (num, 4194303, 0, 0);
2310 num = (num & 0x1f) | ((num & 0x003fffe0) << 4);
2311 INSERT_FIELD_AND_CONTINUE (opcode, num, 0);
8f78d0e9
KR		 2312
2313 /* Handle a source FP operand format completer. */
2314 case 'F':
2315 flag = pa_parse_fp_format (&s);
8f78d0e9 2316 the_insn.fpof1 = flag;
48153d49 2317 INSERT_FIELD_AND_CONTINUE (opcode, flag, 11);
8f78d0e9
KR		 2318
2319 /* Handle a destination FP operand format completer. */
2320 case 'G':
8f78d0e9
KR		 2321 /* pa_parse_format needs the ',' prefix. */
2322 s--;
2323 flag = pa_parse_fp_format (&s);
8f78d0e9 2324 the_insn.fpof2 = flag;
48153d49 2325 INSERT_FIELD_AND_CONTINUE (opcode, flag, 13);
8f78d0e9
KR		 2326
2327 /* Handle FP compare conditions. */
2328 case 'M':
025b0302 2329 cond = pa_parse_fp_cmp_cond (&s);
48153d49 2330 INSERT_FIELD_AND_CONTINUE (opcode, cond, 0);
025b0302 2331
8f78d0e9
KR		 2332 /* Handle L/R register halves like 't'. */
2333 case 'v':
025b0302 2334 {
4829cd65 2335 struct pa_11_fp_reg_struct result;
025b0302 2336
8f78d0e9 2337 pa_parse_number (&s, &result);
48153d49
JL		 2338 CHECK_FIELD (result.number_part, 31, 0, 0);
2339 opcode |= result.number_part;
025b0302 2340
48153d49
JL		 2341 /* 0x30 opcodes are FP arithmetic operation opcodes
2342 and need to be turned into 0x38 opcodes. This
2343 is not necessary for loads/stores. */
4829cd65 2344 if (need_pa11_opcode (&the_insn, &result)
48153d49
JL		 2345 && ((opcode & 0xfc000000) == 0x30000000))
2346 opcode |= 1 << 27;
2347
2348 INSERT_FIELD_AND_CONTINUE (opcode, result.l_r_select & 1, 6);
025b0302 2349 }
8f78d0e9
KR		 2350
2351 /* Handle L/R register halves like 'b'. */
2352 case 'E':
025b0302 2353 {
4829cd65 2354 struct pa_11_fp_reg_struct result;
025b0302 2355
8f78d0e9 2356 pa_parse_number (&s, &result);
48153d49
JL		 2357 CHECK_FIELD (result.number_part, 31, 0, 0);
2358 opcode |= result.number_part << 21;
4829cd65 2359 if (need_pa11_opcode (&the_insn, &result))
025b0302 2360 {
48153d49
JL		 2361 opcode |= (result.l_r_select & 1) << 7;
2362 opcode |= 1 << 27;
025b0302 2363 }
48153d49 2364 continue;
025b0302 2365 }
025b0302 2366
8f78d0e9
KR		 2367 /* Handle L/R register halves like 'x'. */
2368 case 'X':
025b0302 2369 {
4829cd65 2370 struct pa_11_fp_reg_struct result;
025b0302 2371
8f78d0e9 2372 pa_parse_number (&s, &result);
48153d49
JL		 2373 CHECK_FIELD (result.number_part, 31, 0, 0);
2374 opcode |= (result.number_part & 0x1f) << 16;
4829cd65 2375 if (need_pa11_opcode (&the_insn, &result))
025b0302 2376 {
48153d49
JL		 2377 opcode |= (result.l_r_select & 1) << 12;
2378 opcode |= 1 << 27;
025b0302 2379 }
48153d49 2380 continue;
025b0302 2381 }
025b0302 2382
8f78d0e9
KR		 2383 /* Handle a 5 bit register field at 10. */
2384 case '4':
025b0302 2385 {
4829cd65 2386 struct pa_11_fp_reg_struct result;
75c28b49 2387
48153d49
JL		 2388 pa_parse_number (&s, &result);
2389 CHECK_FIELD (result.number_part, 31, 0, 0);
2390 if (the_insn.fpof1 == SGL)
025b0302 2391 {
4ff6f92a
JL		 2392 if (result.number_part < 16)
2393 {
2394 as_bad ("Invalid register for single precision fmpyadd or fmpysub");
2395 break;
2396 }
2397
48153d49
JL		 2398 result.number_part &= 0xF;
2399 result.number_part |= (result.l_r_select & 1) << 4;
025b0302 2400 }
48153d49 2401 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 21);
025b0302 2402 }
025b0302 2403
8f78d0e9
KR		 2404 /* Handle a 5 bit register field at 15. */
2405 case '6':
025b0302 2406 {
4829cd65 2407 struct pa_11_fp_reg_struct result;
025b0302 2408
48153d49
JL		 2409 pa_parse_number (&s, &result);
2410 CHECK_FIELD (result.number_part, 31, 0, 0);
2411 if (the_insn.fpof1 == SGL)
025b0302 2412 {
4ff6f92a
JL		 2413 if (result.number_part < 16)
2414 {
2415 as_bad ("Invalid register for single precision fmpyadd or fmpysub");
2416 break;
2417 }
48153d49
JL		 2418 result.number_part &= 0xF;
2419 result.number_part |= (result.l_r_select & 1) << 4;
025b0302 2420 }
48153d49 2421 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 16);
025b0302 2422 }
025b0302 2423
8f78d0e9
KR		 2424 /* Handle a 5 bit register field at 31. */
2425 case '7':
025b0302 2426 {
4829cd65 2427 struct pa_11_fp_reg_struct result;
025b0302 2428
48153d49
JL		 2429 pa_parse_number (&s, &result);
2430 CHECK_FIELD (result.number_part, 31, 0, 0);
2431 if (the_insn.fpof1 == SGL)
025b0302 2432 {
4ff6f92a
JL		 2433 if (result.number_part < 16)
2434 {
2435 as_bad ("Invalid register for single precision fmpyadd or fmpysub");
2436 break;
2437 }
48153d49
JL		 2438 result.number_part &= 0xF;
2439 result.number_part |= (result.l_r_select & 1) << 4;
025b0302 2440 }
48153d49 2441 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 0);
025b0302 2442 }
025b0302 2443
8f78d0e9
KR		 2444 /* Handle a 5 bit register field at 20. */
2445 case '8':
025b0302 2446 {
4829cd65 2447 struct pa_11_fp_reg_struct result;
025b0302 2448
48153d49
JL		 2449 pa_parse_number (&s, &result);
2450 CHECK_FIELD (result.number_part, 31, 0, 0);
2451 if (the_insn.fpof1 == SGL)
025b0302 2452 {
4ff6f92a
JL		 2453 if (result.number_part < 16)
2454 {
2455 as_bad ("Invalid register for single precision fmpyadd or fmpysub");
2456 break;
2457 }
48153d49
JL		 2458 result.number_part &= 0xF;
2459 result.number_part |= (result.l_r_select & 1) << 4;
025b0302 2460 }
48153d49 2461 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 11);
025b0302 2462 }
025b0302 2463
8f78d0e9
KR		 2464 /* Handle a 5 bit register field at 25. */
2465 case '9':
025b0302 2466 {
4829cd65 2467 struct pa_11_fp_reg_struct result;
025b0302 2468
48153d49
JL		 2469 pa_parse_number (&s, &result);
2470 CHECK_FIELD (result.number_part, 31, 0, 0);
2471 if (the_insn.fpof1 == SGL)
025b0302 2472 {
4ff6f92a
JL		 2473 if (result.number_part < 16)
2474 {
2475 as_bad ("Invalid register for single precision fmpyadd or fmpysub");
2476 break;
2477 }
48153d49
JL		 2478 result.number_part &= 0xF;
2479 result.number_part |= (result.l_r_select & 1) << 4;
025b0302 2480 }
48153d49 2481 INSERT_FIELD_AND_CONTINUE (opcode, result.number_part, 6);
025b0302 2482 }
025b0302 2483
8f78d0e9
KR		 2484 /* Handle a floating point operand format at 26.
2485 Only allows single and double precision. */
2486 case 'H':
2487 flag = pa_parse_fp_format (&s);
2488 switch (flag)
025b0302
ME		 2489 {
2490 case SGL:
2491 opcode |= 0x20;
2492 case DBL:
8f78d0e9 2493 the_insn.fpof1 = flag;
025b0302
ME		 2494 continue;
2495
2496 case QUAD:
2497 case ILLEGAL_FMT:
2498 default:
8f78d0e9 2499 as_bad ("Invalid Floating Point Operand Format.");
025b0302
ME		 2500 }
2501 break;
2502
2503 default:
2504 abort ();
2505 }
2506 break;
2507 }
892a3ff1 2508
8f78d0e9 2509 /* Check if the args matched. */
025b0302
ME		 2510 if (match == FALSE)
2511 {
025b0302
ME		 2512 if (&insn[1] - pa_opcodes < NUMOPCODES
2513 && !strcmp (insn->name, insn[1].name))
2514 {
2515 ++insn;
8f78d0e9 2516 s = argstart;
025b0302
ME		 2517 continue;
2518 }
2519 else
2520 {
8f78d0e9 2521 as_bad ("Invalid operands %s", error_message);
025b0302
ME		 2522 return;
2523 }
2524 }
2525 break;
2526 }
2527
2528 the_insn.opcode = opcode;
025b0302
ME		 2529}
2530
8f78d0e9 2531/* Turn a string in input_line_pointer into a floating point constant of type
025b0302 2532 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
8f78d0e9 2533 emitted is stored in *sizeP . An error message or NULL is returned. */
025b0302 2534
025b0302
ME		 2535#define MAX_LITTLENUMS 6
2536
2537char *
2538md_atof (type, litP, sizeP)
2539 char type;
2540 char *litP;
2541 int *sizeP;
2542{
2543 int prec;
2544 LITTLENUM_TYPE words[MAX_LITTLENUMS];
2545 LITTLENUM_TYPE *wordP;
2546 char *t;
025b0302
ME		 2547
2548 switch (type)
2549 {
2550
2551 case 'f':
2552 case 'F':
2553 case 's':
2554 case 'S':
2555 prec = 2;
2556 break;
2557
2558 case 'd':
2559 case 'D':
2560 case 'r':
2561 case 'R':
2562 prec = 4;
2563 break;
2564
2565 case 'x':
2566 case 'X':
2567 prec = 6;
2568 break;
2569
2570 case 'p':
2571 case 'P':
2572 prec = 6;
2573 break;
2574
2575 default:
2576 *sizeP = 0;
2577 return "Bad call to MD_ATOF()";
2578 }
2579 t = atof_ieee (input_line_pointer, type, words);
2580 if (t)
2581 input_line_pointer = t;
2582 *sizeP = prec * sizeof (LITTLENUM_TYPE);
2583 for (wordP = words; prec--;)
2584 {
8f78d0e9 2585 md_number_to_chars (litP, (valueT) (*wordP++), sizeof (LITTLENUM_TYPE));
025b0302
ME		 2586 litP += sizeof (LITTLENUM_TYPE);
2587 }
aa8b30ed 2588 return NULL;
025b0302
ME		 2589}
2590
8f78d0e9
KR		 2591/* Write out big-endian. */
2592
025b0302
ME		 2593void
2594md_number_to_chars (buf, val, n)
2595 char *buf;
2596 valueT val;
2597 int n;
2598{
bfbfba45 2599 number_to_chars_bigendian (buf, val, n);
025b0302
ME		 2600}
2601
025b0302 2602/* Translate internal representation of relocation info to BFD target
62f0841b 2603 format. */
8f78d0e9 2604
025b0302
ME		 2605arelent **
2606tc_gen_reloc (section, fixp)
2607 asection *section;
2608 fixS *fixp;
2609{
2610 arelent *reloc;
fb338f1d 2611 struct hppa_fix_struct *hppa_fixp;
025b0302 2612 bfd_reloc_code_real_type code;
025b0302
ME		 2613 static arelent *no_relocs = NULL;
2614 arelent **relocs;
2615 bfd_reloc_code_real_type **codes;
2616 int n_relocs;
2617 int i;
2618
fb338f1d 2619 hppa_fixp = (struct hppa_fix_struct *) fixp->tc_fix_data;
025b0302
ME		 2620 if (fixp->fx_addsy == 0)
2621 return &no_relocs;
2622 assert (hppa_fixp != 0);
2623 assert (section != 0);
2624
5c11dba2 2625 reloc = (arelent *) xmalloc (sizeof (arelent));
025b0302
ME		 2626
2627 reloc->sym_ptr_ptr = &fixp->fx_addsy->bsym;
907f11fe 2628 codes = (bfd_reloc_code_real_type **) hppa_gen_reloc_type (stdoutput,
aa8b30ed
JL		 2629 fixp->fx_r_type,
2630 hppa_fixp->fx_r_format,
249c7415 2631 hppa_fixp->fx_r_field,
ac866582
JL		 2632 fixp->fx_subsy != NULL,
2633 fixp->fx_addsy->bsym);
025b0302 2634
5c11dba2
ILT		 2635 if (codes == NULL)
2636 abort ();
2637
025b0302
ME		 2638 for (n_relocs = 0; codes[n_relocs]; n_relocs++)
2639 ;
2640
5c11dba2
ILT		 2641 relocs = (arelent **) xmalloc (sizeof (arelent *) * n_relocs + 1);
2642 reloc = (arelent *) xmalloc (sizeof (arelent) * n_relocs);
025b0302
ME		 2643 for (i = 0; i < n_relocs; i++)
2644 relocs[i] = &reloc[i];
2645
2646 relocs[n_relocs] = NULL;
2647
62f0841b 2648#ifdef OBJ_ELF
025b0302
ME		 2649 switch (fixp->fx_r_type)
2650 {
025b0302
ME		 2651 default:
2652 assert (n_relocs == 1);
2653
2654 code = *codes[0];
2655
2656 reloc->sym_ptr_ptr = &fixp->fx_addsy->bsym;
2657 reloc->howto = bfd_reloc_type_lookup (stdoutput, code);
60937ce7 2658 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
025b0302
ME		 2659 reloc->addend = 0; /* default */
2660
2661 assert (reloc->howto && code == reloc->howto->type);
2662
8f78d0e9 2663 /* Now, do any processing that is dependent on the relocation type. */
025b0302
ME		 2664 switch (code)
2665 {
8fd04cba
JL		 2666 case R_PARISC_DLTREL21L:
2667 case R_PARISC_DLTREL14R:
2668 case R_PARISC_DLTREL14F:
3315c7c7
JL		 2669 case R_PARISC_PLABEL32:
2670 case R_PARISC_PLABEL21L:
2671 case R_PARISC_PLABEL14R:
8f78d0e9
KR		 2672 /* For plabel relocations, the addend of the
2673 relocation should be either 0 (no static link) or 2
2674 (static link required).
2675
8fd04cba
JL		 2676 FIXME: We always assume no static link!
2677
2678 We also slam a zero addend into the DLT relative relocs;
2679 it doesn't make a lot of sense to use any addend since
2680 it gets you a different (eg unknown) DLT entry. */
7b624bf2 2681 reloc->addend = 0;
025b0302
ME		 2682 break;
2683
3315c7c7
JL		 2684 case R_PARISC_PCREL21L:
2685 case R_PARISC_PCREL17R:
2686 case R_PARISC_PCREL17F:
2687 case R_PARISC_PCREL17C:
2688 case R_PARISC_PCREL14R:
2689 case R_PARISC_PCREL14F:
8f78d0e9
KR		 2690 /* The constant is stored in the instruction. */
2691 reloc->addend = HPPA_R_ADDEND (hppa_fixp->fx_arg_reloc, 0);
025b0302
ME		 2692 break;
2693 default:
e67b3aa3 2694 reloc->addend = fixp->fx_offset;
025b0302
ME		 2695 break;
2696 }
2697 break;
2698 }
62f0841b 2699#else /* OBJ_SOM */
025b0302 2700
4165dcc2
JL		 2701 /* Walk over reach relocation returned by the BFD backend. */
2702 for (i = 0; i < n_relocs; i++)
62f0841b 2703 {
4165dcc2 2704 code = *codes[i];
c5e9ccd0 2705
4165dcc2
JL		 2706 relocs[i]->sym_ptr_ptr = &fixp->fx_addsy->bsym;
2707 relocs[i]->howto = bfd_reloc_type_lookup (stdoutput, code);
2708 relocs[i]->address = fixp->fx_frag->fr_address + fixp->fx_where;
025b0302 2709
62f0841b
JL		 2710 switch (code)
2711 {
249c7415
JL		 2712 case R_COMP2:
2713 /* The only time we ever use a R_COMP2 fixup is for the difference
ac866582
JL		 2714 of two symbols. With that in mind we fill in all four
2715 relocs now and break out of the loop. */
2716 assert (i == 1);
2717 relocs[0]->sym_ptr_ptr = &bfd_abs_symbol;
2718 relocs[0]->howto = bfd_reloc_type_lookup (stdoutput, *codes[0]);
2719 relocs[0]->address = fixp->fx_frag->fr_address + fixp->fx_where;
2720 relocs[0]->addend = 0;
2721 relocs[1]->sym_ptr_ptr = &fixp->fx_addsy->bsym;
2722 relocs[1]->howto = bfd_reloc_type_lookup (stdoutput, *codes[1]);
2723 relocs[1]->address = fixp->fx_frag->fr_address + fixp->fx_where;
2724 relocs[1]->addend = 0;
2725 relocs[2]->sym_ptr_ptr = &fixp->fx_subsy->bsym;
2726 relocs[2]->howto = bfd_reloc_type_lookup (stdoutput, *codes[2]);
2727 relocs[2]->address = fixp->fx_frag->fr_address + fixp->fx_where;
2728 relocs[2]->addend = 0;
2729 relocs[3]->sym_ptr_ptr = &bfd_abs_symbol;
2730 relocs[3]->howto = bfd_reloc_type_lookup (stdoutput, *codes[3]);
2731 relocs[3]->address = fixp->fx_frag->fr_address + fixp->fx_where;
2732 relocs[3]->addend = 0;
2733 relocs[4]->sym_ptr_ptr = &bfd_abs_symbol;
2734 relocs[4]->howto = bfd_reloc_type_lookup (stdoutput, *codes[4]);
2735 relocs[4]->address = fixp->fx_frag->fr_address + fixp->fx_where;
2736 relocs[4]->addend = 0;
2737 goto done;
62f0841b
JL		 2738 case R_PCREL_CALL:
2739 case R_ABS_CALL:
4165dcc2 2740 relocs[i]->addend = HPPA_R_ADDEND (hppa_fixp->fx_arg_reloc, 0);
62f0841b 2741 break;
f2eed884 2742
8fd04cba 2743 case R_DLT_REL:
f2eed884
JL		 2744 case R_DATA_PLABEL:
2745 case R_CODE_PLABEL:
2746 /* For plabel relocations, the addend of the
2747 relocation should be either 0 (no static link) or 2
2748 (static link required).
2749
75c28b49 2750 FIXME: We always assume no static link!
8fd04cba
JL		 2751
2752 We also slam a zero addend into the DLT relative relocs;
2753 it doesn't make a lot of sense to use any addend since
2754 it gets you a different (eg unknown) DLT entry. */
4165dcc2
JL		 2755 relocs[i]->addend = 0;
2756 break;
2757
2758 case R_N_MODE:
2759 case R_S_MODE:
2760 case R_D_MODE:
2761 case R_R_MODE:
6868afe6
KR		 2762 case R_FSEL:
2763 case R_LSEL:
2764 case R_RSEL:
5ae218df
JL		 2765 case R_BEGIN_BRTAB:
2766 case R_END_BRTAB:
448b5aad 2767 case R_BEGIN_TRY:
eff5fcda
JL		 2768 case R_N0SEL:
2769 case R_N1SEL:
4165dcc2 2770 /* There is no symbol or addend associated with these fixups. */
fca59f9d 2771 relocs[i]->sym_ptr_ptr = &dummy_symbol->bsym;
4165dcc2 2772 relocs[i]->addend = 0;
f2eed884
JL		 2773 break;
2774
448b5aad 2775 case R_END_TRY:
75c28b49
JL		 2776 case R_ENTRY:
2777 case R_EXIT:
2778 /* There is no symbol associated with these fixups. */
2779 relocs[i]->sym_ptr_ptr = &dummy_symbol->bsym;
e67b3aa3 2780 relocs[i]->addend = fixp->fx_offset;
75c28b49
JL		 2781 break;
2782
62f0841b 2783 default:
e67b3aa3 2784 relocs[i]->addend = fixp->fx_offset;
62f0841b 2785 }
62f0841b 2786 }
b81231b7
JL		 2787
2788 done:
025b0302
ME		 2789#endif
2790
62f0841b
JL		 2791 return relocs;
2792}
2793
8f78d0e9
KR		 2794/* Process any machine dependent frag types. */
2795
025b0302
ME		 2796void
2797md_convert_frag (abfd, sec, fragP)
2798 register bfd *abfd;
2799 register asection *sec;
2800 register fragS *fragP;
2801{
2802 unsigned int address;
2803
2804 if (fragP->fr_type == rs_machine_dependent)
2805 {
2806 switch ((int) fragP->fr_subtype)
2807 {
2808 case 0:
2809 fragP->fr_type = rs_fill;
2810 know (fragP->fr_var == 1);
2811 know (fragP->fr_next);
2812 address = fragP->fr_address + fragP->fr_fix;
2813 if (address % fragP->fr_offset)
2814 {
2815 fragP->fr_offset =
2816 fragP->fr_next->fr_address
2817 - fragP->fr_address
2818 - fragP->fr_fix;
2819 }
2820 else
2821 fragP->fr_offset = 0;
2822 break;
2823 }
8f78d0e9
KR		 2824 }
2825}
025b0302 2826
8f78d0e9 2827/* Round up a section size to the appropriate boundary. */
025b0302 2828
8f78d0e9
KR		 2829valueT
2830md_section_align (segment, size)
2831 asection *segment;
2832 valueT size;
025b0302 2833{
8f78d0e9
KR		 2834 int align = bfd_get_section_alignment (stdoutput, segment);
2835 int align2 = (1 << align) - 1;
025b0302 2836
8f78d0e9 2837 return (size + align2) & ~align2;
8f78d0e9 2838}
025b0302 2839
8f78d0e9
KR		 2840/* Create a short jump from FROM_ADDR to TO_ADDR. Not used on the PA. */
2841void
2842md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol)
2843 char *ptr;
2844 addressT from_addr, to_addr;
2845 fragS *frag;
2846 symbolS *to_symbol;
2847{
2848 fprintf (stderr, "pa_create_short_jmp\n");
2849 abort ();
2850}
025b0302 2851
8f78d0e9
KR		 2852/* Create a long jump from FROM_ADDR to TO_ADDR. Not used on the PA. */
2853void
2854md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol)
2855 char *ptr;
2856 addressT from_addr, to_addr;
2857 fragS *frag;
2858 symbolS *to_symbol;
2859{
2860 fprintf (stderr, "pa_create_long_jump\n");
2861 abort ();
025b0302
ME		 2862}
2863
8f78d0e9
KR		 2864/* Return the approximate size of a frag before relaxation has occurred. */
2865int
2866md_estimate_size_before_relax (fragP, segment)
2867 register fragS *fragP;
2868 asection *segment;
025b0302 2869{
8f78d0e9
KR		 2870 int size;
2871
2872 size = 0;
2873
2874 while ((fragP->fr_fix + size) % fragP->fr_offset)
2875 size++;
2876
2877 return size;
025b0302 2878}
f3d817d8
DM		 2879\f
2880CONST char *md_shortopts = "";
2881struct option md_longopts[] = {
2882 {NULL, no_argument, NULL, 0}
2883};
2884size_t md_longopts_size = sizeof(md_longopts);
025b0302 2885
8f78d0e9 2886int
f3d817d8
DM		 2887md_parse_option (c, arg)
2888 int c;
2889 char *arg;
025b0302 2890{
f3d817d8 2891 return 0;
8f78d0e9 2892}
025b0302 2893
f3d817d8
DM		 2894void
2895md_show_usage (stream)
2896 FILE *stream;
2897{
2898}
2899\f
8f78d0e9
KR		 2900/* We have no need to default values of symbols. */
2901
2902symbolS *
2903md_undefined_symbol (name)
2904 char *name;
2905{
2906 return 0;
025b0302
ME		 2907}
2908
753dcbbd 2909/* Apply a fixup to an instruction. */
8f78d0e9 2910
753dcbbd
JL		 2911int
2912md_apply_fix (fixP, valp)
8f78d0e9 2913 fixS *fixP;
753dcbbd 2914 valueT *valp;
025b0302 2915{
8f78d0e9 2916 char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
fb338f1d 2917 struct hppa_fix_struct *hppa_fixP;
ac866582 2918 long new_val, result = 0;
b81231b7 2919 unsigned int w1, w2, w, resulti;
8f78d0e9 2920
fb338f1d 2921 hppa_fixP = (struct hppa_fix_struct *) fixP->tc_fix_data;
75c28b49 2922 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
83b59013
JL		 2923 never be "applied" (they are just markers). Likewise for
2924 R_HPPA_BEGIN_BRTAB and R_HPPA_END_BRTAB. */
ff852e11
JL		 2925#ifdef OBJ_SOM
2926 if (fixP->fx_r_type == R_HPPA_ENTRY
83b59013
JL		 2927 || fixP->fx_r_type == R_HPPA_EXIT
2928 || fixP->fx_r_type == R_HPPA_BEGIN_BRTAB
448b5aad
JL		 2929 || fixP->fx_r_type == R_HPPA_END_BRTAB
2930 || fixP->fx_r_type == R_HPPA_BEGIN_TRY)
b81231b7 2931 return 1;
448b5aad
JL		 2932
2933 /* Disgusting. We must set fx_offset ourselves -- R_HPPA_END_TRY
2934 fixups are considered not adjustable, which in turn causes
2935 adjust_reloc_syms to not set fx_offset. Ugh. */
2936 if (fixP->fx_r_type == R_HPPA_END_TRY)
2937 {
2938 fixP->fx_offset = *valp;
2939 return 1;
2940 }
ff852e11
JL		 2941#endif
2942
8f78d0e9
KR		 2943 /* There should have been an HPPA specific fixup associated
2944 with the GAS fixup. */
2945 if (hppa_fixP)
2946 {
2947 unsigned long buf_wd = bfd_get_32 (stdoutput, buf);
aa8b30ed 2948 unsigned char fmt = bfd_hppa_insn2fmt (buf_wd);
8f78d0e9 2949
e67b3aa3
JL		 2950 /* If there is a symbol associated with this fixup, then it's something
2951 which will need a SOM relocation (except for some PC-relative relocs).
2952 In such cases we should treat the "val" or "addend" as zero since it
2953 will be added in as needed from fx_offset in tc_gen_reloc. */
b4682e51
JL		 2954 if ((fixP->fx_addsy != NULL
2955 || fixP->fx_r_type == R_HPPA_NONE)
2956#ifdef OBJ_SOM
2957 && fmt != 32
2958 || hppa_fixP->fx_r_field == e_psel
2959 || hppa_fixP->fx_r_field == e_rpsel
2960 || hppa_fixP->fx_r_field == e_lpsel
2961 || hppa_fixP->fx_r_field == e_tsel
2962 || hppa_fixP->fx_r_field == e_rtsel
2963 || hppa_fixP->fx_r_field == e_ltsel
2964#endif
2965 )
e67b3aa3 2966 new_val = ((fmt == 12 || fmt == 17) ? 8 : 0);
2c23d22b
JL		 2967#ifdef OBJ_SOM
2968 /* This is truely disgusting. The machine independent code blindly
2969 adds in the value of the symbol being relocated against. Damn! */
2970 else if (fmt == 32
2971 && fixP->fx_addsy != NULL
2972 && S_GET_SEGMENT (fixP->fx_addsy) != bfd_com_section_ptr)
2973 new_val = hppa_field_adjust (*valp - S_GET_VALUE (fixP->fx_addsy),
2974 0, hppa_fixP->fx_r_field);
2975#endif
48153d49 2976 else
e67b3aa3 2977 new_val = hppa_field_adjust (*valp, 0, hppa_fixP->fx_r_field);
48153d49 2978
e67b3aa3 2979 /* Handle pc-relative exceptions from above. */
4829cd65 2980#define arg_reloc_stub_needed(CALLER, CALLEE) \
e67b3aa3
JL		 2981 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
2982 if ((fmt == 12 || fmt == 17)
2983 && fixP->fx_addsy
2984 && fixP->fx_pcrel
4829cd65
JL		 2985 && !arg_reloc_stub_needed (((obj_symbol_type *)
2986 fixP->fx_addsy->bsym)->tc_data.hppa_arg_reloc,
2987 hppa_fixP->fx_arg_reloc)
4ff6f92a 2988 && ((int)(*valp) > -262144 && (int)(*valp) < 262143)
e67b3aa3
JL		 2989 && S_GET_SEGMENT (fixP->fx_addsy) == hppa_fixP->segment
2990 && !(fixP->fx_subsy
2991 && S_GET_SEGMENT (fixP->fx_subsy) != hppa_fixP->segment))
2992
2993 new_val = hppa_field_adjust (*valp, 0, hppa_fixP->fx_r_field);
4829cd65 2994#undef arg_reloc_stub_needed
e67b3aa3 2995
8f78d0e9
KR		 2996 switch (fmt)
2997 {
2998 /* Handle all opcodes with the 'j' operand type. */
2999 case 14:
48153d49 3000 CHECK_FIELD (new_val, 8191, -8192, 0);
8f78d0e9
KR		 3001
3002 /* Mask off 14 bits to be changed. */
3003 bfd_put_32 (stdoutput,
3004 bfd_get_32 (stdoutput, buf) & 0xffffc000,
3005 buf);
b81231b7
JL		 3006 low_sign_unext (new_val, 14, &resulti);
3007 result = resulti;
8f78d0e9
KR		 3008 break;
3009
3010 /* Handle all opcodes with the 'k' operand type. */
3011 case 21:
48153d49 3012 CHECK_FIELD (new_val, 2097152, 0, 0);
8f78d0e9
KR		 3013
3014 /* Mask off 21 bits to be changed. */
3015 bfd_put_32 (stdoutput,
3016 bfd_get_32 (stdoutput, buf) & 0xffe00000,
3017 buf);
b81231b7
JL		 3018 dis_assemble_21 (new_val, &resulti);
3019 result = resulti;
8f78d0e9
KR		 3020 break;
3021
3022 /* Handle all the opcodes with the 'i' operand type. */
3023 case 11:
48153d49 3024 CHECK_FIELD (new_val, 1023, -1023, 0);
8f78d0e9
KR		 3025
3026 /* Mask off 11 bits to be changed. */
3027 bfd_put_32 (stdoutput,
3028 bfd_get_32 (stdoutput, buf) & 0xffff800,
3029 buf);
b81231b7
JL		 3030 low_sign_unext (new_val, 11, &resulti);
3031 result = resulti;
8f78d0e9
KR		 3032 break;
3033
3034 /* Handle all the opcodes with the 'w' operand type. */
3035 case 12:
b81231b7 3036 CHECK_FIELD (new_val, 8199, -8184, 0);
8f78d0e9
KR		 3037
3038 /* Mask off 11 bits to be changed. */
b81231b7 3039 sign_unext ((new_val - 8) >> 2, 12, &resulti);
8f78d0e9
KR		 3040 bfd_put_32 (stdoutput,
3041 bfd_get_32 (stdoutput, buf) & 0xffffe002,
3042 buf);
3043
b81231b7 3044 dis_assemble_12 (resulti, &w1, &w);
8f78d0e9 3045 result = ((w1 << 2) | w);
8f78d0e9
KR		 3046 break;
3047
753dcbbd
JL		 3048 /* Handle some of the opcodes with the 'W' operand type. */
3049 case 17:
48153d49 3050 CHECK_FIELD (new_val, 262143, -262144, 0);
8f78d0e9
KR		 3051
3052 /* Mask off 17 bits to be changed. */
3053 bfd_put_32 (stdoutput,
3054 bfd_get_32 (stdoutput, buf) & 0xffe0e002,
3055 buf);
b81231b7
JL		 3056 sign_unext ((new_val - 8) >> 2, 17, &resulti);
3057 dis_assemble_17 (resulti, &w1, &w2, &w);
8f78d0e9 3058 result = ((w2 << 2) | (w1 << 16) | w);
8f78d0e9
KR		 3059 break;
3060
8f78d0e9 3061 case 32:
3315c7c7 3062 result = 0;
e67b3aa3 3063 bfd_put_32 (stdoutput, new_val, buf);
8f78d0e9
KR		 3064 break;
3065
8f78d0e9 3066 default:
48153d49 3067 as_bad ("Unknown relocation encountered in md_apply_fix.");
b81231b7 3068 return 0;
8f78d0e9
KR		 3069 }
3070
3071 /* Insert the relocation. */
48153d49 3072 bfd_put_32 (stdoutput, bfd_get_32 (stdoutput, buf) | result, buf);
b81231b7 3073 return 1;
8f78d0e9 3074 }
025b0302 3075 else
753dcbbd
JL		 3076 {
3077 printf ("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n",
3078 (unsigned int) fixP, fixP->fx_r_type);
b81231b7 3079 return 0;
753dcbbd 3080 }
8f78d0e9
KR		 3081}
3082
3083/* Exactly what point is a PC-relative offset relative TO?
3084 On the PA, they're relative to the address of the offset. */
3085
3086long
3087md_pcrel_from (fixP)
3088 fixS *fixP;
3089{
3090 return fixP->fx_where + fixP->fx_frag->fr_address;
3091}
3092
75c28b49 3093/* Return nonzero if the input line pointer is at the end of
8f78d0e9
KR		 3094 a statement. */
3095
3096static int
3097is_end_of_statement ()
3098{
3099 return ((*input_line_pointer == '\n')
3100 || (*input_line_pointer == ';')
3101 || (*input_line_pointer == '!'));
3102}
3103
3104/* Read a number from S. The number might come in one of many forms,
3105 the most common will be a hex or decimal constant, but it could be
3106 a pre-defined register (Yuk!), or an absolute symbol.
3107
3108 Return a number or -1 for failure.
3109
3110 When parsing PA-89 FP register numbers RESULT will be
3111 the address of a structure to return information about
3112 L/R half of FP registers, store results there as appropriate.
3113
3114 pa_parse_number can not handle negative constants and will fail
3115 horribly if it is passed such a constant. */
3116
3117static int
3118pa_parse_number (s, result)
025b0302 3119 char **s;
4829cd65 3120 struct pa_11_fp_reg_struct *result;
025b0302
ME		 3121{
3122 int num;
3123 char *name;
3124 char c;
3125 symbolS *sym;
3126 int status;
3127 char *p = *s;
3128
8f78d0e9 3129 /* Skip whitespace before the number. */
025b0302
ME		 3130 while (*p == ' ' || *p == '\t')
3131 p = p + 1;
8f78d0e9
KR		 3132
3133 /* Store info in RESULT if requested by caller. */
3134 if (result)
3135 {
3136 result->number_part = -1;
3137 result->l_r_select = -1;
3138 }
3139 num = -1;
025b0302
ME		 3140
3141 if (isdigit (*p))
3142 {
8f78d0e9
KR		 3143 /* Looks like a number. */
3144 num = 0;
025b0302
ME		 3145
3146 if (*p == '0' && (*(p + 1) == 'x' || *(p + 1) == 'X'))
8f78d0e9
KR		 3147 {
3148 /* The number is specified in hex. */
3149 p += 2;
025b0302
ME		 3150 while (isdigit (*p) || ((*p >= 'a') && (*p <= 'f'))
3151 || ((*p >= 'A') && (*p <= 'F')))
3152 {
3153 if (isdigit (*p))
3154 num = num * 16 + *p - '0';
3155 else if (*p >= 'a' && *p <= 'f')
3156 num = num * 16 + *p - 'a' + 10;
3157 else
3158 num = num * 16 + *p - 'A' + 10;
3159 ++p;
3160 }
3161 }
3162 else
3163 {
8f78d0e9 3164 /* The number is specified in decimal. */
025b0302
ME		 3165 while (isdigit (*p))
3166 {
3167 num = num * 10 + *p - '0';
3168 ++p;
3169 }
3170 }
3171
8f78d0e9
KR		 3172 /* Store info in RESULT if requested by the caller. */
3173 if (result)
025b0302 3174 {
8f78d0e9 3175 result->number_part = num;
025b0302 3176
8f78d0e9
KR		 3177 if (IS_R_SELECT (p))
3178 {
3179 result->l_r_select = 1;
3180 ++p;
3181 }
3182 else if (IS_L_SELECT (p))
3183 {
3184 result->l_r_select = 0;
3185 ++p;
3186 }
3187 else
3188 result->l_r_select = 0;
3189 }
025b0302
ME		 3190 }
3191 else if (*p == '%')
8f78d0e9
KR		 3192 {
3193 /* The number might be a predefined register. */
025b0302
ME		 3194 num = 0;
3195 name = p;
3196 p++;
3197 c = *p;
8f78d0e9 3198 /* Tege hack: Special case for general registers as the general
75c28b49 3199 code makes a binary search with case translation, and is VERY
8f78d0e9 3200 slow. */
025b0302
ME		 3201 if (c == 'r')
3202 {
3203 p++;
8f78d0e9
KR		 3204 if (*p == 'e' && *(p + 1) == 't'
3205 && (*(p + 2) == '0' || *(p + 2) == '1'))
025b0302
ME		 3206 {
3207 p += 2;
8f78d0e9 3208 num = *p - '0' + 28;
025b0302
ME		 3209 p++;
3210 }
d6e524f3
JL		 3211 else if (*p == 'p')
3212 {
3213 num = 2;
3214 p++;
3215 }
025b0302 3216 else if (!isdigit (*p))
d6e524f3
JL		 3217 {
3218 if (print_errors)
3219 as_bad ("Undefined register: '%s'.", name);
3220 num = -1;
3221 }
025b0302
ME		 3222 else
3223 {
3224 do
3225 num = num * 10 + *p++ - '0';
3226 while (isdigit (*p));
3227 }
3228 }
3229 else
3230 {
8f78d0e9 3231 /* Do a normal register search. */
025b0302
ME		 3232 while (is_part_of_name (c))
3233 {
3234 p = p + 1;
3235 c = *p;
3236 }
3237 *p = 0;
3238 status = reg_name_search (name);
3239 if (status >= 0)
3240 num = status;
3241 else
3242 {
3243 if (print_errors)
d6e524f3
JL		 3244 as_bad ("Undefined register: '%s'.", name);
3245 num = -1;
025b0302
ME		 3246 }
3247 *p = c;
3248 }
3249
8f78d0e9
KR		 3250 /* Store info in RESULT if requested by caller. */
3251 if (result)
3252 {
3253 result->number_part = num;
3254 if (IS_R_SELECT (p - 1))
3255 result->l_r_select = 1;
3256 else if (IS_L_SELECT (p - 1))
3257 result->l_r_select = 0;
3258 else
3259 result->l_r_select = 0;
3260 }
025b0302
ME		 3261 }
3262 else
3263 {
8f78d0e9
KR		 3264 /* And finally, it could be a symbol in the absolute section which
3265 is effectively a constant. */
025b0302
ME		 3266 num = 0;
3267 name = p;
3268 c = *p;
3269 while (is_part_of_name (c))
3270 {
3271 p = p + 1;
3272 c = *p;
3273 }
3274 *p = 0;
3275 if ((sym = symbol_find (name)) != NULL)
3276 {
025b0302 3277 if (S_GET_SEGMENT (sym) == &bfd_abs_section)
8f78d0e9 3278 num = S_GET_VALUE (sym);
025b0302
ME		 3279 else
3280 {
3281 if (print_errors)
d6e524f3
JL		 3282 as_bad ("Non-absolute symbol: '%s'.", name);
3283 num = -1;
025b0302
ME		 3284 }
3285 }
3286 else
3287 {
d6e524f3
JL		 3288 /* There is where we'd come for an undefined symbol
3289 or for an empty string. For an empty string we
3290 will return zero. That's a concession made for
3291 compatability with the braindamaged HP assemblers. */
1cc248d2 3292 if (*name == 0)
d6e524f3 3293 num = 0;
025b0302 3294 else
d6e524f3
JL		 3295 {
3296 if (print_errors)
3297 as_bad ("Undefined absolute constant: '%s'.", name);
3298 num = -1;
3299 }
025b0302
ME		 3300 }
3301 *p = c;
025b0302 3302
8f78d0e9
KR		 3303 /* Store info in RESULT if requested by caller. */
3304 if (result)
3305 {
3306 result->number_part = num;
3307 if (IS_R_SELECT (p - 1))
3308 result->l_r_select = 1;
3309 else if (IS_L_SELECT (p - 1))
3310 result->l_r_select = 0;
3311 else
3312 result->l_r_select = 0;
3313 }
025b0302
ME		 3314 }
3315
3316 *s = p;
3317 return num;
8f78d0e9
KR		 3318}
3319
3320#define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
3321
3322/* Given NAME, find the register number associated with that name, return
3323 the integer value associated with the given name or -1 on failure. */
3324
3325static int
3326reg_name_search (name)
3327 char *name;
3328{
3329 int middle, low, high;
4047ff1d 3330 int cmp;
8f78d0e9
KR		 3331
3332 low = 0;
3333 high = REG_NAME_CNT - 1;
3334
3335 do
3336 {
3337 middle = (low + high) / 2;
4047ff1d
JL		 3338 cmp = strcasecmp (name, pre_defined_registers[middle].name);
3339 if (cmp < 0)
8f78d0e9 3340 high = middle - 1;
4047ff1d 3341 else if (cmp > 0)
8f78d0e9 3342 low = middle + 1;
4047ff1d
JL		 3343 else
3344 return pre_defined_registers[middle].value;
8f78d0e9 3345 }
4047ff1d 3346 while (low <= high);
8f78d0e9 3347
4047ff1d 3348 return -1;
8f78d0e9
KR		 3349}
3350
3351
3352/* Return nonzero if the given INSN and L/R information will require
4829cd65 3353 a new PA-1.1 opcode. */
025b0302 3354
8f78d0e9 3355static int
4829cd65 3356need_pa11_opcode (insn, result)
8f78d0e9 3357 struct pa_it *insn;
4829cd65 3358 struct pa_11_fp_reg_struct *result;
8f78d0e9
KR		 3359{
3360 if (result->l_r_select == 1 && !(insn->fpof1 == DBL && insn->fpof2 == DBL))
4829cd65
JL		 3361 {
3362 /* If this instruction is specific to a particular architecture,
3363 then set a new architecture. */
3364 if (bfd_get_mach (stdoutput) < pa11)
3365 {
3366 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, pa11))
3367 as_warn ("could not update architecture and machine");
3368 }
3369 return TRUE;
3370 }
8f78d0e9
KR		 3371 else
3372 return FALSE;
025b0302
ME		 3373}
3374
8f78d0e9
KR		 3375/* Parse a condition for a fcmp instruction. Return the numerical
3376 code associated with the condition. */
c5e9ccd0 3377
8f78d0e9 3378static int
025b0302
ME		 3379pa_parse_fp_cmp_cond (s)
3380 char **s;
3381{
3382 int cond, i;
025b0302
ME		 3383
3384 cond = 0;
3385
3386 for (i = 0; i < 32; i++)
3387 {
8f78d0e9
KR		 3388 if (strncasecmp (*s, fp_cond_map[i].string,
3389 strlen (fp_cond_map[i].string)) == 0)
025b0302 3390 {
8f78d0e9
KR		 3391 cond = fp_cond_map[i].cond;
3392 *s += strlen (fp_cond_map[i].string);
ee8b8346
JL		 3393 /* If not a complete match, back up the input string and
3394 report an error. */
3395 if (**s != ' ' && **s != '\t')
3396 {
3397 *s -= strlen (fp_cond_map[i].string);
3398 break;
3399 }
025b0302
ME		 3400 while (**s == ' ' || **s == '\t')
3401 *s = *s + 1;
3402 return cond;
3403 }
3404 }
3405
ee8b8346
JL		 3406 as_bad ("Invalid FP Compare Condition: %s", *s);
3407
3408 /* Advance over the bogus completer. */
3409 while (**s != ',' && **s != ' ' && **s != '\t')
3410 *s += 1;
3411
025b0302
ME		 3412 return 0;
3413}
3414
8f78d0e9
KR		 3415/* Parse an FP operand format completer returning the completer
3416 type. */
c5e9ccd0 3417
8f78d0e9 3418static fp_operand_format
025b0302
ME		 3419pa_parse_fp_format (s)
3420 char **s;
3421{
8f78d0e9 3422 int format;
025b0302 3423
8f78d0e9 3424 format = SGL;
025b0302
ME		 3425 if (**s == ',')
3426 {
3427 *s += 1;
3428 if (strncasecmp (*s, "sgl", 3) == 0)
3429 {
8f78d0e9 3430 format = SGL;
025b0302
ME		 3431 *s += 4;
3432 }
3433 else if (strncasecmp (*s, "dbl", 3) == 0)
3434 {
8f78d0e9 3435 format = DBL;
025b0302
ME		 3436 *s += 4;
3437 }
3438 else if (strncasecmp (*s, "quad", 4) == 0)
3439 {
8f78d0e9 3440 format = QUAD;
025b0302
ME		 3441 *s += 5;
3442 }
3443 else
3444 {
8f78d0e9
KR		 3445 format = ILLEGAL_FMT;
3446 as_bad ("Invalid FP Operand Format: %3s", *s);
025b0302
ME		 3447 }
3448 }
025b0302 3449
8f78d0e9 3450 return format;
025b0302
ME		 3451}
3452
8f78d0e9
KR		 3453/* Convert from a selector string into a selector type. */
3454
3455static int
025b0302
ME		 3456pa_chk_field_selector (str)
3457 char **str;
3458{
4047ff1d
JL		 3459 int middle, low, high;
3460 int cmp;
83b59013 3461 char name[4];
025b0302 3462
8f78d0e9 3463 /* Read past any whitespace. */
4047ff1d 3464 /* FIXME: should we read past newlines and formfeeds??? */
025b0302 3465 while (**str == ' ' || **str == '\t' || **str == '\n' || **str == '\f')
8f78d0e9
KR		 3466 *str = *str + 1;
3467
4047ff1d
JL		 3468 if ((*str)[1] == '\'' || (*str)[1] == '%')
3469 name[0] = tolower ((*str)[0]),
3470 name[1] = 0;
3471 else if ((*str)[2] == '\'' || (*str)[2] == '%')
3472 name[0] = tolower ((*str)[0]),
3473 name[1] = tolower ((*str)[1]),
3474 name[2] = 0;
83b59013
JL		 3475#ifdef OBJ_SOM
3476 else if ((*str)[3] == '\'' || (*str)[3] == '%')
3477 name[0] = tolower ((*str)[0]),
3478 name[1] = tolower ((*str)[1]),
3479 name[2] = tolower ((*str)[2]),
3480 name[3] = 0;
3481#endif
4047ff1d
JL		 3482 else
3483 return e_fsel;
3484
3485 low = 0;
3486 high = sizeof (selector_table) / sizeof (struct selector_entry) - 1;
3487
3488 do
025b0302 3489 {
4047ff1d
JL		 3490 middle = (low + high) / 2;
3491 cmp = strcmp (name, selector_table[middle].prefix);
3492 if (cmp < 0)
3493 high = middle - 1;
3494 else if (cmp > 0)
3495 low = middle + 1;
3496 else
025b0302 3497 {
4047ff1d 3498 *str += strlen (name) + 1;
83b59013
JL		 3499#ifndef OBJ_SOM
3500 if (selector_table[middle].field_selector == e_nsel)
3501 return e_fsel;
3502#endif
4047ff1d 3503 return selector_table[middle].field_selector;
025b0302
ME		 3504 }
3505 }
4047ff1d
JL		 3506 while (low <= high);
3507
3508 return e_fsel;
025b0302
ME		 3509}
3510
c5e9ccd0 3511/* Mark (via expr_end) the end of an expression (I think). FIXME. */
025b0302 3512
8f78d0e9
KR		 3513static int
3514get_expression (str)
025b0302
ME		 3515 char *str;
3516{
3517 char *save_in;
8f78d0e9 3518 asection *seg;
025b0302
ME		 3519
3520 save_in = input_line_pointer;
3521 input_line_pointer = str;
5cf4cd1b
KR		 3522 seg = expression (&the_insn.exp);
3523 if (!(seg == absolute_section
3524 || seg == undefined_section
3525 || SEG_NORMAL (seg)))
025b0302 3526 {
c5e9ccd0 3527 as_warn ("Bad segment in expression.");
025b0302
ME		 3528 expr_end = input_line_pointer;
3529 input_line_pointer = save_in;
3530 return 1;
3531 }
3532 expr_end = input_line_pointer;
3533 input_line_pointer = save_in;
3534 return 0;
3535}
3536
8f78d0e9
KR		 3537/* Mark (via expr_end) the end of an absolute expression. FIXME. */
3538static int
48153d49
JL		 3539pa_get_absolute_expression (insn, strp)
3540 struct pa_it *insn;
3541 char **strp;
025b0302
ME		 3542{
3543 char *save_in;
025b0302 3544
48153d49 3545 insn->field_selector = pa_chk_field_selector (strp);
025b0302 3546 save_in = input_line_pointer;
48153d49
JL		 3547 input_line_pointer = *strp;
3548 expression (&insn->exp);
3549 if (insn->exp.X_op != O_constant)
025b0302 3550 {
48153d49 3551 as_bad ("Bad segment (should be absolute).");
025b0302
ME		 3552 expr_end = input_line_pointer;
3553 input_line_pointer = save_in;
48153d49 3554 return 0;
025b0302
ME		 3555 }
3556 expr_end = input_line_pointer;
3557 input_line_pointer = save_in;
48153d49 3558 return evaluate_absolute (insn);
025b0302
ME		 3559}
3560
75c28b49 3561/* Evaluate an absolute expression EXP which may be modified by
8f78d0e9
KR		 3562 the selector FIELD_SELECTOR. Return the value of the expression. */
3563static int
48153d49
JL		 3564evaluate_absolute (insn)
3565 struct pa_it *insn;
025b0302
ME		 3566{
3567 int value;
f41f3d72 3568 expressionS exp;
48153d49 3569 int field_selector = insn->field_selector;
025b0302 3570
f41f3d72 3571 exp = insn->exp;
025b0302
ME		 3572 value = exp.X_add_number;
3573
025b0302
ME		 3574 switch (field_selector)
3575 {
8f78d0e9
KR		 3576 /* No change. */
3577 case e_fsel:
025b0302
ME		 3578 break;
3579
8f78d0e9
KR		 3580 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
3581 case e_lssel:
025b0302
ME		 3582 if (value & 0x00000400)
3583 value += 0x800;
3584 value = (value & 0xfffff800) >> 11;
3585 break;
3586
8f78d0e9
KR		 3587 /* Sign extend from bit 21. */
3588 case e_rssel:
025b0302
ME		 3589 if (value & 0x00000400)
3590 value |= 0xfffff800;
3591 else
3592 value &= 0x7ff;
3593 break;
3594
8f78d0e9
KR		 3595 /* Arithmetic shift right 11 bits. */
3596 case e_lsel:
025b0302
ME		 3597 value = (value & 0xfffff800) >> 11;
3598 break;
3599
8f78d0e9
KR		 3600 /* Set bits 0-20 to zero. */
3601 case e_rsel:
025b0302
ME		 3602 value = value & 0x7ff;
3603 break;
3604
8f78d0e9
KR		 3605 /* Add 0x800 and arithmetic shift right 11 bits. */
3606 case e_ldsel:
025b0302 3607 value += 0x800;
025b0302
ME		 3608 value = (value & 0xfffff800) >> 11;
3609 break;
3610
8f78d0e9
KR		 3611 /* Set bitgs 0-21 to one. */
3612 case e_rdsel:
3613 value |= 0xfffff800;
025b0302
ME		 3614 break;
3615
7b624bf2 3616#define RSEL_ROUND(c) (((c) + 0x1000) & ~0x1fff)
8f78d0e9 3617 case e_rrsel:
7b624bf2
JL		 3618 value = (RSEL_ROUND (value) & 0x7ff) + (value - RSEL_ROUND (value));
3619 break;
3620
8f78d0e9 3621 case e_lrsel:
7b624bf2
JL		 3622 value = (RSEL_ROUND (value) >> 11) & 0x1fffff;
3623 break;
3624#undef RSEL_ROUND
8f78d0e9 3625
025b0302
ME		 3626 default:
3627 BAD_CASE (field_selector);
3628 break;
3629 }
3630 return value;
3631}
3632
8f78d0e9
KR		 3633/* Given an argument location specification return the associated
3634 argument location number. */
3635
3636static unsigned int
025b0302
ME		 3637pa_build_arg_reloc (type_name)
3638 char *type_name;
3639{
3640
3641 if (strncasecmp (type_name, "no", 2) == 0)
8f78d0e9 3642 return 0;
025b0302 3643 if (strncasecmp (type_name, "gr", 2) == 0)
8f78d0e9 3644 return 1;
025b0302 3645 else if (strncasecmp (type_name, "fr", 2) == 0)
8f78d0e9 3646 return 2;
025b0302 3647 else if (strncasecmp (type_name, "fu", 2) == 0)
8f78d0e9 3648 return 3;
025b0302 3649 else
8f78d0e9 3650 as_bad ("Invalid argument location: %s\n", type_name);
025b0302
ME		 3651
3652 return 0;
3653}
3654
8f78d0e9
KR		 3655/* Encode and return an argument relocation specification for
3656 the given register in the location specified by arg_reloc. */
3657
3658static unsigned int
025b0302
ME		 3659pa_align_arg_reloc (reg, arg_reloc)
3660 unsigned int reg;
3661 unsigned int arg_reloc;
3662{
3663 unsigned int new_reloc;
3664
3665 new_reloc = arg_reloc;
3666 switch (reg)
3667 {
3668 case 0:
3669 new_reloc <<= 8;
3670 break;
3671 case 1:
3672 new_reloc <<= 6;
3673 break;
3674 case 2:
3675 new_reloc <<= 4;
3676 break;
3677 case 3:
3678 new_reloc <<= 2;
3679 break;
3680 default:
8f78d0e9 3681 as_bad ("Invalid argument description: %d", reg);
025b0302
ME		 3682 }
3683
3684 return new_reloc;
3685}
3686
8f78d0e9
KR		 3687/* Parse a PA nullification completer (,n). Return nonzero if the
3688 completer was found; return zero if no completer was found. */
3689
3690static int
025b0302
ME		 3691pa_parse_nullif (s)
3692 char **s;
3693{
3694 int nullif;
3695
3696 nullif = 0;
3697 if (**s == ',')
3698 {
3699 *s = *s + 1;
3700 if (strncasecmp (*s, "n", 1) == 0)
3701 nullif = 1;
3702 else
3703 {
8f78d0e9 3704 as_bad ("Invalid Nullification: (%c)", **s);
025b0302
ME		 3705 nullif = 0;
3706 }
3707 *s = *s + 1;
3708 }
025b0302
ME		 3709
3710 return nullif;
3711}
3712
8f78d0e9
KR		 3713/* Parse a non-negated compare/subtract completer returning the
3714 number (for encoding in instrutions) of the given completer.
3715
3716 ISBRANCH specifies whether or not this is parsing a condition
3717 completer for a branch (vs a nullification completer for a
3718 computational instruction. */
3719
3720static int
5cf4cd1b 3721pa_parse_nonneg_cmpsub_cmpltr (s, isbranch)
025b0302 3722 char **s;
5cf4cd1b 3723 int isbranch;
025b0302
ME		 3724{
3725 int cmpltr;
5cf4cd1b 3726 char *name = *s + 1;
025b0302 3727 char c;
5cf4cd1b 3728 char *save_s = *s;
025b0302 3729
5cf4cd1b 3730 cmpltr = 0;
025b0302
ME		 3731 if (**s == ',')
3732 {
3733 *s += 1;
025b0302
ME		 3734 while (**s != ',' && **s != ' ' && **s != '\t')
3735 *s += 1;
3736 c = **s;
3737 **s = 0x00;
3738 if (strcmp (name, "=") == 0)
3739 {
3740 cmpltr = 1;
3741 }
3742 else if (strcmp (name, "<") == 0)
3743 {
3744 cmpltr = 2;
3745 }
3746 else if (strcmp (name, "<=") == 0)
3747 {
3748 cmpltr = 3;
3749 }
3750 else if (strcmp (name, "<<") == 0)
3751 {
3752 cmpltr = 4;
3753 }
3754 else if (strcmp (name, "<<=") == 0)
3755 {
3756 cmpltr = 5;
3757 }
3758 else if (strcasecmp (name, "sv") == 0)
3759 {
3760 cmpltr = 6;
3761 }
3762 else if (strcasecmp (name, "od") == 0)
3763 {
3764 cmpltr = 7;
3765 }
5cf4cd1b 3766 /* If we have something like addb,n then there is no condition
8f78d0e9 3767 completer. */
5cf4cd1b 3768 else if (strcasecmp (name, "n") == 0 && isbranch)
025b0302 3769 {
5cf4cd1b 3770 cmpltr = 0;
025b0302 3771 }
8f78d0e9 3772 else
025b0302 3773 {
5cf4cd1b 3774 cmpltr = -1;
025b0302 3775 }
025b0302
ME		 3776 **s = c;
3777 }
025b0302 3778
5cf4cd1b
KR		 3779 /* Reset pointers if this was really a ,n for a branch instruction. */
3780 if (cmpltr == 0 && *name == 'n' && isbranch)
3781 *s = save_s;
3782
025b0302
ME		 3783 return cmpltr;
3784}
3785
8f78d0e9
KR		 3786/* Parse a negated compare/subtract completer returning the
3787 number (for encoding in instrutions) of the given completer.
3788
3789 ISBRANCH specifies whether or not this is parsing a condition
3790 completer for a branch (vs a nullification completer for a
3791 computational instruction. */
3792
3793static int
5cf4cd1b 3794pa_parse_neg_cmpsub_cmpltr (s, isbranch)
025b0302 3795 char **s;
5cf4cd1b 3796 int isbranch;
025b0302
ME		 3797{
3798 int cmpltr;
5cf4cd1b 3799 char *name = *s + 1;
025b0302 3800 char c;
5cf4cd1b 3801 char *save_s = *s;
025b0302 3802
5cf4cd1b 3803 cmpltr = 0;
025b0302
ME		 3804 if (**s == ',')
3805 {
3806 *s += 1;
025b0302
ME		 3807 while (**s != ',' && **s != ' ' && **s != '\t')
3808 *s += 1;
3809 c = **s;
3810 **s = 0x00;
3811 if (strcasecmp (name, "tr") == 0)
3812 {
3813 cmpltr = 0;
3814 }
3815 else if (strcmp (name, "<>") == 0)
3816 {
3817 cmpltr = 1;
3818 }
3819 else if (strcmp (name, ">=") == 0)
3820 {
3821 cmpltr = 2;
3822 }
3823 else if (strcmp (name, ">") == 0)
3824 {
3825 cmpltr = 3;
3826 }
3827 else if (strcmp (name, ">>=") == 0)
3828 {
3829 cmpltr = 4;
3830 }
3831 else if (strcmp (name, ">>") == 0)
3832 {
3833 cmpltr = 5;
3834 }
3835 else if (strcasecmp (name, "nsv") == 0)
3836 {
3837 cmpltr = 6;
3838 }
3839 else if (strcasecmp (name, "ev") == 0)
3840 {
3841 cmpltr = 7;
3842 }
5cf4cd1b 3843 /* If we have something like addb,n then there is no condition
8f78d0e9 3844 completer. */
5cf4cd1b
KR		 3845 else if (strcasecmp (name, "n") == 0 && isbranch)
3846 {
3847 cmpltr = 0;
3848 }
3849 else
3850 {
3851 cmpltr = -1;
3852 }
025b0302
ME		 3853 **s = c;
3854 }
025b0302 3855
5cf4cd1b
KR		 3856 /* Reset pointers if this was really a ,n for a branch instruction. */
3857 if (cmpltr == 0 && *name == 'n' && isbranch)
3858 *s = save_s;
3859
025b0302
ME		 3860 return cmpltr;
3861}
3862
8f78d0e9
KR		 3863/* Parse a non-negated addition completer returning the number
3864 (for encoding in instrutions) of the given completer.
3865
3866 ISBRANCH specifies whether or not this is parsing a condition
3867 completer for a branch (vs a nullification completer for a
3868 computational instruction. */
3869
3870static int
5cf4cd1b 3871pa_parse_nonneg_add_cmpltr (s, isbranch)
025b0302 3872 char **s;
5cf4cd1b 3873 int isbranch;
025b0302
ME		 3874{
3875 int cmpltr;
5cf4cd1b 3876 char *name = *s + 1;
025b0302 3877 char c;
5cf4cd1b 3878 char *save_s = *s;
025b0302 3879
5cf4cd1b 3880 cmpltr = 0;
025b0302
ME		 3881 if (**s == ',')
3882 {
3883 *s += 1;
025b0302
ME		 3884 while (**s != ',' && **s != ' ' && **s != '\t')
3885 *s += 1;
3886 c = **s;
3887 **s = 0x00;
3888 if (strcmp (name, "=") == 0)
3889 {
3890 cmpltr = 1;
3891 }
3892 else if (strcmp (name, "<") == 0)
3893 {
3894 cmpltr = 2;
3895 }
3896 else if (strcmp (name, "<=") == 0)
3897 {
3898 cmpltr = 3;
3899 }
3900 else if (strcasecmp (name, "nuv") == 0)
3901 {
3902 cmpltr = 4;
3903 }
3904 else if (strcasecmp (name, "znv") == 0)
3905 {
3906 cmpltr = 5;
3907 }
3908 else if (strcasecmp (name, "sv") == 0)
3909 {
3910 cmpltr = 6;
3911 }
3912 else if (strcasecmp (name, "od") == 0)
3913 {
3914 cmpltr = 7;
3915 }
5cf4cd1b 3916 /* If we have something like addb,n then there is no condition
8f78d0e9 3917 completer. */
5cf4cd1b
KR		 3918 else if (strcasecmp (name, "n") == 0 && isbranch)
3919 {
3920 cmpltr = 0;
3921 }
3922 else
3923 {
3924 cmpltr = -1;
3925 }
025b0302
ME		 3926 **s = c;
3927 }
025b0302 3928
5cf4cd1b
KR		 3929 /* Reset pointers if this was really a ,n for a branch instruction. */
3930 if (cmpltr == 0 && *name == 'n' && isbranch)
3931 *s = save_s;
3932
025b0302
ME		 3933 return cmpltr;
3934}
3935
8f78d0e9
KR		 3936/* Parse a negated addition completer returning the number
3937 (for encoding in instrutions) of the given completer.
3938
3939 ISBRANCH specifies whether or not this is parsing a condition
3940 completer for a branch (vs a nullification completer for a
b81231b7 3941 computational instruction). */
8f78d0e9
KR		 3942
3943static int
5cf4cd1b 3944pa_parse_neg_add_cmpltr (s, isbranch)
025b0302 3945 char **s;
5cf4cd1b 3946 int isbranch;
025b0302
ME		 3947{
3948 int cmpltr;
5cf4cd1b 3949 char *name = *s + 1;
025b0302 3950 char c;
5cf4cd1b 3951 char *save_s = *s;
025b0302 3952
5cf4cd1b 3953 cmpltr = 0;
025b0302
ME		 3954 if (**s == ',')
3955 {
3956 *s += 1;
025b0302
ME		 3957 while (**s != ',' && **s != ' ' && **s != '\t')
3958 *s += 1;
3959 c = **s;
3960 **s = 0x00;
3961 if (strcasecmp (name, "tr") == 0)
3962 {
3963 cmpltr = 0;
3964 }
3965 else if (strcmp (name, "<>") == 0)
3966 {
3967 cmpltr = 1;
3968 }
3969 else if (strcmp (name, ">=") == 0)
3970 {
3971 cmpltr = 2;
3972 }
3973 else if (strcmp (name, ">") == 0)
3974 {
3975 cmpltr = 3;
3976 }
4047ff1d 3977 else if (strcasecmp (name, "uv") == 0)
025b0302
ME		 3978 {
3979 cmpltr = 4;
3980 }
4047ff1d 3981 else if (strcasecmp (name, "vnz") == 0)
025b0302
ME		 3982 {
3983 cmpltr = 5;
3984 }
3985 else if (strcasecmp (name, "nsv") == 0)
3986 {
3987 cmpltr = 6;
3988 }
3989 else if (strcasecmp (name, "ev") == 0)
3990 {
3991 cmpltr = 7;
3992 }
5cf4cd1b 3993 /* If we have something like addb,n then there is no condition
8f78d0e9 3994 completer. */
5cf4cd1b
KR		 3995 else if (strcasecmp (name, "n") == 0 && isbranch)
3996 {
3997 cmpltr = 0;
3998 }
3999 else
4000 {
4001 cmpltr = -1;
4002 }
025b0302
ME		 4003 **s = c;
4004 }
025b0302 4005
5cf4cd1b
KR		 4006 /* Reset pointers if this was really a ,n for a branch instruction. */
4007 if (cmpltr == 0 && *name == 'n' && isbranch)
4008 *s = save_s;
4009
025b0302
ME		 4010 return cmpltr;
4011}
4012
e67b3aa3
JL		 4013/* Handle an alignment directive. Special so that we can update the
4014 alignment of the subspace if necessary. */
4015static void
4016pa_align (bytes)
4017{
60937ce7
JL		 4018 /* We must have a valid space and subspace. */
4019 pa_check_current_space_and_subspace ();
4020
e67b3aa3
JL		 4021 /* Let the generic gas code do most of the work. */
4022 s_align_bytes (bytes);
4023
4024 /* If bytes is a power of 2, then update the current subspace's
4025 alignment if necessary. */
4026 if (log2 (bytes) != -1)
4027 record_alignment (current_subspace->ssd_seg, log2 (bytes));
4028}
4029
8f78d0e9 4030/* Handle a .BLOCK type pseudo-op. */
025b0302 4031
8f78d0e9 4032static void
025b0302
ME		 4033pa_block (z)
4034 int z;
4035{
8f78d0e9
KR		 4036 char *p;
4037 long int temp_fill;
4038 unsigned int temp_size;
4039 int i;
025b0302 4040
60937ce7
JL		 4041 /* We must have a valid space and subspace. */
4042 pa_check_current_space_and_subspace ();
4043
025b0302
ME		 4044 temp_size = get_absolute_expression ();
4045
8f78d0e9
KR		 4046 /* Always fill with zeros, that's what the HP assembler does. */
4047 temp_fill = 0;
025b0302 4048
c5e9ccd0 4049 p = frag_var (rs_fill, (int) temp_size, (int) temp_size,
5c11dba2 4050 (relax_substateT) 0, (symbolS *) 0, (offsetT) 1, NULL);
8f78d0e9 4051 bzero (p, temp_size);
025b0302 4052
8f78d0e9 4053 /* Convert 2 bytes at a time. */
025b0302
ME		 4054
4055 for (i = 0; i < temp_size; i += 2)
4056 {
4057 md_number_to_chars (p + i,
8f78d0e9 4058 (valueT) temp_fill,
025b0302
ME		 4059 (int) ((temp_size - i) > 2 ? 2 : (temp_size - i)));
4060 }
4061
4062 pa_undefine_label ();
4063 demand_empty_rest_of_line ();
025b0302
ME		 4064}
4065
5ae218df
JL		 4066/* Handle a .begin_brtab and .end_brtab pseudo-op. */
4067
4068static void
4069pa_brtab (begin)
4070 int begin;
4071{
4072
4073#ifdef OBJ_SOM
4074 /* The BRTAB relocations are only availble in SOM (to denote
4075 the beginning and end of branch tables). */
4076 char *where = frag_more (0);
4077
4078 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
4079 NULL, (offsetT) 0, NULL,
4080 0, begin ? R_HPPA_BEGIN_BRTAB : R_HPPA_END_BRTAB,
4081 e_fsel, 0, 0, NULL);
4082#endif
4083
4084 demand_empty_rest_of_line ();
4085}
4086
448b5aad
JL		 4087/* Handle a .begin_try and .end_try pseudo-op. */
4088
4089static void
4090pa_try (begin)
4091 int begin;
4092{
4093#ifdef OBJ_SOM
4094 expressionS exp;
4095 char *where = frag_more (0);
4096
4097 if (! begin)
4098 expression (&exp);
4099
4100 /* The TRY relocations are only availble in SOM (to denote
4101 the beginning and end of exception handling regions). */
4102
4103 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
4104 NULL, (offsetT) 0, begin ? NULL : &exp,
4105 0, begin ? R_HPPA_BEGIN_TRY : R_HPPA_END_TRY,
4106 e_fsel, 0, 0, NULL);
4107#endif
4108
4109 demand_empty_rest_of_line ();
4110}
4111
8f78d0e9
KR		 4112/* Handle a .CALL pseudo-op. This involves storing away information
4113 about where arguments are to be found so the linker can detect
4114 (and correct) argument location mismatches between caller and callee. */
025b0302 4115
8f78d0e9
KR		 4116static void
4117pa_call (unused)
4118 int unused;
4119{
60937ce7
JL		 4120 /* We must have a valid space and subspace. */
4121 pa_check_current_space_and_subspace ();
4122
025b0302
ME		 4123 pa_call_args (&last_call_desc);
4124 demand_empty_rest_of_line ();
025b0302
ME		 4125}
4126
8f78d0e9
KR		 4127/* Do the dirty work of building a call descriptor which describes
4128 where the caller placed arguments to a function call. */
4129
4130static void
025b0302 4131pa_call_args (call_desc)
8f78d0e9 4132 struct call_desc *call_desc;
025b0302 4133{
8f78d0e9
KR		 4134 char *name, c, *p;
4135 unsigned int temp, arg_reloc;
025b0302
ME		 4136
4137 while (!is_end_of_statement ())
4138 {
4139 name = input_line_pointer;
4140 c = get_symbol_end ();
8f78d0e9 4141 /* Process a source argument. */
025b0302
ME		 4142 if ((strncasecmp (name, "argw", 4) == 0))
4143 {
4144 temp = atoi (name + 4);
4145 p = input_line_pointer;
4146 *p = c;
4147 input_line_pointer++;
4148 name = input_line_pointer;
4149 c = get_symbol_end ();
4150 arg_reloc = pa_build_arg_reloc (name);
4151 call_desc->arg_reloc |= pa_align_arg_reloc (temp, arg_reloc);
4152 }
8f78d0e9 4153 /* Process a return value. */
025b0302
ME		 4154 else if ((strncasecmp (name, "rtnval", 6) == 0))
4155 {
4156 p = input_line_pointer;
4157 *p = c;
4158 input_line_pointer++;
4159 name = input_line_pointer;
4160 c = get_symbol_end ();
4161 arg_reloc = pa_build_arg_reloc (name);
4162 call_desc->arg_reloc |= (arg_reloc & 0x3);
4163 }
4164 else
4165 {
8f78d0e9 4166 as_bad ("Invalid .CALL argument: %s", name);
025b0302
ME		 4167 }
4168 p = input_line_pointer;
4169 *p = c;
4170 if (!is_end_of_statement ())
4171 input_line_pointer++;
4172 }
4173}
4174
8f78d0e9
KR		 4175/* Return TRUE if FRAG1 and FRAG2 are the same. */
4176
025b0302 4177static int
8f78d0e9
KR		 4178is_same_frag (frag1, frag2)
4179 fragS *frag1;
4180 fragS *frag2;
025b0302
ME		 4181{
4182
8f78d0e9 4183 if (frag1 == NULL)
025b0302 4184 return (FALSE);
8f78d0e9 4185 else if (frag2 == NULL)
025b0302 4186 return (FALSE);
8f78d0e9 4187 else if (frag1 == frag2)
025b0302 4188 return (TRUE);
8f78d0e9
KR		 4189 else if (frag2->fr_type == rs_fill && frag2->fr_fix == 0)
4190 return (is_same_frag (frag1, frag2->fr_next));
025b0302
ME		 4191 else
4192 return (FALSE);
4193}
4194
ff852e11 4195#ifdef OBJ_ELF
75c28b49 4196/* Build an entry in the UNWIND subspace from the given function
ff852e11
JL		 4197 attributes in CALL_INFO. This is not needed for SOM as using
4198 R_ENTRY and R_EXIT relocations allow the linker to handle building
4199 of the unwind spaces. */
c5e9ccd0 4200
025b0302
ME		 4201static void
4202pa_build_unwind_subspace (call_info)
8f78d0e9 4203 struct call_info *call_info;
025b0302 4204{
8f78d0e9
KR		 4205 char *unwind;
4206 asection *seg, *save_seg;
025b0302
ME		 4207 subsegT subseg, save_subseg;
4208 int i;
8f78d0e9
KR		 4209 char c, *p;
4210
4211 /* Get into the right seg/subseg. This may involve creating
4212 the seg the first time through. Make sure to have the
4213 old seg/subseg so that we can reset things when we are done. */
4214 subseg = SUBSEG_UNWIND;
4215 seg = bfd_get_section_by_name (stdoutput, UNWIND_SECTION_NAME);
4216 if (seg == ASEC_NULL)
025b0302 4217 {
8f78d0e9
KR		 4218 seg = bfd_make_section_old_way (stdoutput, UNWIND_SECTION_NAME);
4219 bfd_set_section_flags (stdoutput, seg,
4220 SEC_READONLY | SEC_HAS_CONTENTS
4221 | SEC_LOAD | SEC_RELOC);
025b0302
ME		 4222 }
4223
025b0302
ME		 4224 save_seg = now_seg;
4225 save_subseg = now_subseg;
80aab579 4226 subseg_set (seg, subseg);
025b0302 4227
8f78d0e9
KR		 4228
4229 /* Get some space to hold relocation information for the unwind
4230 descriptor. */
025b0302 4231 p = frag_more (4);
249c7415 4232 md_number_to_chars (p, 0, 4);
025b0302 4233
8f78d0e9 4234 /* Relocation info. for start offset of the function. */
8f78d0e9
KR		 4235 fix_new_hppa (frag_now, p - frag_now->fr_literal, 4,
4236 call_info->start_symbol, (offsetT) 0,
75c28b49 4237 (expressionS *) NULL, 0, R_PARISC_DIR32, e_fsel, 32, 0, NULL);
025b0302 4238
025b0302 4239 p = frag_more (4);
249c7415 4240 md_number_to_chars (p, 0, 4);
025b0302 4241
4ff6f92a
JL		 4242 /* Relocation info. for end offset of the function.
4243
4244 Because we allow reductions of 32bit relocations for ELF, this will be
4245 reduced to section_sym + offset which avoids putting the temporary
4246 symbol into the symbol table. It (should) end up giving the same
4247 value as call_info->start_symbol + function size once the linker is
4248 finished with its work. */
4249
8f78d0e9 4250 fix_new_hppa (frag_now, p - frag_now->fr_literal, 4,
4ff6f92a 4251 call_info->end_symbol, (offsetT) 0,
75c28b49 4252 (expressionS *) NULL, 0, R_PARISC_DIR32, e_fsel, 32, 0, NULL);
025b0302 4253
8f78d0e9
KR		 4254 /* Dump it. */
4255 unwind = (char *) &call_info->ci_unwind;
4256 for (i = 8; i < sizeof (struct unwind_table); i++)
025b0302 4257 {
8f78d0e9 4258 c = *(unwind + i);
025b0302
ME		 4259 {
4260 FRAG_APPEND_1_CHAR (c);
4261 }
4262 }
4263
8f78d0e9 4264 /* Return back to the original segment/subsegment. */
80aab579 4265 subseg_set (save_seg, save_subseg);
025b0302 4266}
ff852e11 4267#endif
025b0302 4268
8f78d0e9
KR		 4269/* Process a .CALLINFO pseudo-op. This information is used later
4270 to build unwind descriptors and maybe one day to support
4271 .ENTER and .LEAVE. */
025b0302 4272
8f78d0e9
KR		 4273static void
4274pa_callinfo (unused)
4275 int unused;
025b0302 4276{
8f78d0e9
KR		 4277 char *name, c, *p;
4278 int temp;
025b0302 4279
60937ce7
JL		 4280 /* We must have a valid space and subspace. */
4281 pa_check_current_space_and_subspace ();
4282
8f78d0e9 4283 /* .CALLINFO must appear within a procedure definition. */
025b0302
ME		 4284 if (!within_procedure)
4285 as_bad (".callinfo is not within a procedure definition");
4286
8f78d0e9
KR		 4287 /* Mark the fact that we found the .CALLINFO for the
4288 current procedure. */
025b0302
ME		 4289 callinfo_found = TRUE;
4290
8f78d0e9 4291 /* Iterate over the .CALLINFO arguments. */
025b0302
ME		 4292 while (!is_end_of_statement ())
4293 {
4294 name = input_line_pointer;
4295 c = get_symbol_end ();
8f78d0e9 4296 /* Frame size specification. */
025b0302
ME		 4297 if ((strncasecmp (name, "frame", 5) == 0))
4298 {
4299 p = input_line_pointer;
4300 *p = c;
4301 input_line_pointer++;
4302 temp = get_absolute_expression ();
4303 if ((temp & 0x3) != 0)
4304 {
4305 as_bad ("FRAME parameter must be a multiple of 8: %d\n", temp);
4306 temp = 0;
4307 }
49fc68a1 4308
c5e9ccd0 4309 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
49fc68a1
JL		 4310 last_call_info->ci_unwind.descriptor.frame_size = temp / 8;
4311
025b0302 4312 }
8f78d0e9 4313 /* Entry register (GR, GR and SR) specifications. */
025b0302
ME		 4314 else if ((strncasecmp (name, "entry_gr", 8) == 0))
4315 {
4316 p = input_line_pointer;
4317 *p = c;
4318 input_line_pointer++;
4319 temp = get_absolute_expression ();
aa8b30ed 4320 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
75c28b49 4321 even though %r19 is caller saved. I think this is a bug in
aa8b30ed
JL		 4322 the HP assembler, and we are not going to emulate it. */
4323 if (temp < 3 || temp > 18)
4324 as_bad ("Value for ENTRY_GR must be in the range 3..18\n");
4325 last_call_info->ci_unwind.descriptor.entry_gr = temp - 2;
025b0302
ME		 4326 }
4327 else if ((strncasecmp (name, "entry_fr", 8) == 0))
4328 {
4329 p = input_line_pointer;
4330 *p = c;
4331 input_line_pointer++;
4332 temp = get_absolute_expression ();
75c28b49 4333 /* Similarly the HP assembler takes 31 as the high bound even
aa8b30ed
JL		 4334 though %fr21 is the last callee saved floating point register. */
4335 if (temp < 12 || temp > 21)
4336 as_bad ("Value for ENTRY_FR must be in the range 12..21\n");
4337 last_call_info->ci_unwind.descriptor.entry_fr = temp - 11;
025b0302
ME		 4338 }
4339 else if ((strncasecmp (name, "entry_sr", 8) == 0))
4340 {
4341 p = input_line_pointer;
4342 *p = c;
4343 input_line_pointer++;
4344 temp = get_absolute_expression ();
aa8b30ed
JL		 4345 if (temp != 3)
4346 as_bad ("Value for ENTRY_SR must be 3\n");
025b0302 4347 }
8f78d0e9 4348 /* Note whether or not this function performs any calls. */
025b0302
ME		 4349 else if ((strncasecmp (name, "calls", 5) == 0) ||
4350 (strncasecmp (name, "caller", 6) == 0))
4351 {
4352 p = input_line_pointer;
4353 *p = c;
025b0302
ME		 4354 }
4355 else if ((strncasecmp (name, "no_calls", 8) == 0))
4356 {
4357 p = input_line_pointer;
4358 *p = c;
025b0302 4359 }
8f78d0e9 4360 /* Should RP be saved into the stack. */
025b0302
ME		 4361 else if ((strncasecmp (name, "save_rp", 7) == 0))
4362 {
4363 p = input_line_pointer;
4364 *p = c;
4365 last_call_info->ci_unwind.descriptor.save_rp = 1;
4366 }
8f78d0e9 4367 /* Likewise for SP. */
025b0302
ME		 4368 else if ((strncasecmp (name, "save_sp", 7) == 0))
4369 {
4370 p = input_line_pointer;
4371 *p = c;
4372 last_call_info->ci_unwind.descriptor.save_sp = 1;
4373 }
8f78d0e9 4374 /* Is this an unwindable procedure. If so mark it so
c5e9ccd0 4375 in the unwind descriptor. */
025b0302
ME		 4376 else if ((strncasecmp (name, "no_unwind", 9) == 0))
4377 {
4378 p = input_line_pointer;
4379 *p = c;
4380 last_call_info->ci_unwind.descriptor.cannot_unwind = 1;
4381 }
8f78d0e9 4382 /* Is this an interrupt routine. If so mark it in the
c5e9ccd0 4383 unwind descriptor. */
025b0302
ME		 4384 else if ((strncasecmp (name, "hpux_int", 7) == 0))
4385 {
4386 p = input_line_pointer;
4387 *p = c;
8f78d0e9 4388 last_call_info->ci_unwind.descriptor.hpux_interrupt_marker = 1;
025b0302 4389 }
f2ada910
JL		 4390 /* Is this a millicode routine. "millicode" isn't in my
4391 assembler manual, but my copy is old. The HP assembler
4392 accepts it, and there's a place in the unwind descriptor
4393 to drop the information, so we'll accept it too. */
4394 else if ((strncasecmp (name, "millicode", 9) == 0))
4395 {
4396 p = input_line_pointer;
4397 *p = c;
4398 last_call_info->ci_unwind.descriptor.millicode = 1;
4399 }
025b0302
ME		 4400 else
4401 {
8f78d0e9 4402 as_bad ("Invalid .CALLINFO argument: %s", name);
f2ada910 4403 *input_line_pointer = c;
025b0302
ME		 4404 }
4405 if (!is_end_of_statement ())
4406 input_line_pointer++;
4407 }
4408
4409 demand_empty_rest_of_line ();
025b0302
ME		 4410}
4411
8f78d0e9
KR		 4412/* Switch into the code subspace. */
4413
4414static void
4415pa_code (unused)
4416 int unused;
025b0302 4417{
60937ce7
JL		 4418 current_space = is_defined_space ("$TEXT$");
4419 current_subspace
4420 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
4421 s_text (0);
4422 pa_undefine_label ();
025b0302
ME		 4423}
4424
8f78d0e9
KR		 4425/* This is different than the standard GAS s_comm(). On HP9000/800 machines,
4426 the .comm pseudo-op has the following symtax:
025b0302 4427
8f78d0e9
KR		 4428 <label> .comm <length>
4429
4430 where <label> is optional and is a symbol whose address will be the start of
4431 a block of memory <length> bytes long. <length> must be an absolute
4432 expression. <length> bytes will be allocated in the current space
4829cd65
JL		 4433 and subspace.
4434
4435 Also note the label may not even be on the same line as the .comm.
4436
4437 This difference in syntax means the colon function will be called
4438 on the symbol before we arrive in pa_comm. colon will set a number
4439 of attributes of the symbol that need to be fixed here. In particular
4440 the value, section pointer, fragment pointer, flags, etc. What
4441 a pain.
4442
4443 This also makes error detection all but impossible. */
8f78d0e9
KR		 4444
4445static void
4446pa_comm (unused)
4447 int unused;
025b0302 4448{
8f78d0e9
KR		 4449 unsigned int size;
4450 symbolS *symbol;
4451 label_symbol_struct *label_symbol = pa_get_label ();
025b0302 4452
8f78d0e9
KR		 4453 if (label_symbol)
4454 symbol = label_symbol->lss_label;
025b0302 4455 else
8f78d0e9 4456 symbol = NULL;
025b0302
ME		 4457
4458 SKIP_WHITESPACE ();
8f78d0e9 4459 size = get_absolute_expression ();
025b0302 4460
8f78d0e9 4461 if (symbol)
025b0302 4462 {
4829cd65
JL		 4463 S_SET_VALUE (symbol, size);
4464 S_SET_SEGMENT (symbol, bfd_und_section_ptr);
4465 S_SET_EXTERNAL (symbol);
2cffb4f4 4466
4829cd65
JL		 4467 /* colon() has already set the frag to the current location in the
4468 current subspace; we need to reset the fragment to the zero address
4469 fragment. We also need to reset the segment pointer. */
4470 symbol->sy_frag = &zero_address_frag;
025b0302 4471 }
025b0302
ME		 4472 demand_empty_rest_of_line ();
4473}
4474
8f78d0e9 4475/* Process a .END pseudo-op. */
025b0302 4476
8f78d0e9
KR		 4477static void
4478pa_end (unused)
4479 int unused;
4480{
025b0302 4481 demand_empty_rest_of_line ();
025b0302
ME		 4482}
4483
c5e9ccd0 4484/* Process a .ENTER pseudo-op. This is not supported. */
8f78d0e9
KR		 4485static void
4486pa_enter (unused)
4487 int unused;
025b0302 4488{
60937ce7
JL		 4489 /* We must have a valid space and subspace. */
4490 pa_check_current_space_and_subspace ();
4491
c5e9ccd0 4492 abort ();
025b0302
ME		 4493}
4494
8f78d0e9
KR		 4495/* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
4496 procesure. */
4497static void
4498pa_entry (unused)
4499 int unused;
025b0302 4500{
60937ce7
JL		 4501 /* We must have a valid space and subspace. */
4502 pa_check_current_space_and_subspace ();
4503
025b0302
ME		 4504 if (!within_procedure)
4505 as_bad ("Misplaced .entry. Ignored.");
4506 else
4507 {
4508 if (!callinfo_found)
4509 as_bad ("Missing .callinfo.");
025b0302
ME		 4510 }
4511 demand_empty_rest_of_line ();
4512 within_entry_exit = TRUE;
8f78d0e9 4513
ff852e11
JL		 4514#ifdef OBJ_SOM
4515 /* SOM defers building of unwind descriptors until the link phase.
4516 The assembler is responsible for creating an R_ENTRY relocation
4517 to mark the beginning of a region and hold the unwind bits, and
4518 for creating an R_EXIT relocation to mark the end of the region.
4519
4520 FIXME. ELF should be using the same conventions! The problem
4521 is an unwind requires too much relocation space. Hmmm. Maybe
4522 if we split the unwind bits up between the relocations which
4523 denote the entry and exit points. */
86066d06
JL		 4524 if (last_call_info->start_symbol != NULL)
4525 {
4526 char *where = frag_more (0);
c5e9ccd0 4527
86066d06 4528 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
75c28b49 4529 NULL, (offsetT) 0, NULL,
86066d06 4530 0, R_HPPA_ENTRY, e_fsel, 0, 0,
75c28b49 4531 (int *) &last_call_info->ci_unwind.descriptor);
86066d06 4532 }
ff852e11 4533#endif
025b0302
ME		 4534}
4535
8f78d0e9
KR		 4536/* Handle a .EQU pseudo-op. */
4537
4538static void
025b0302
ME		 4539pa_equ (reg)
4540 int reg;
4541{
8f78d0e9
KR		 4542 label_symbol_struct *label_symbol = pa_get_label ();
4543 symbolS *symbol;
025b0302 4544
8f78d0e9 4545 if (label_symbol)
025b0302 4546 {
8f78d0e9 4547 symbol = label_symbol->lss_label;
c38c91da
JL		 4548 if (reg)
4549 S_SET_VALUE (symbol, pa_parse_number (&input_line_pointer, 0));
4550 else
4551 S_SET_VALUE (symbol, (unsigned int) get_absolute_expression ());
75c28b49 4552 S_SET_SEGMENT (symbol, bfd_abs_section_ptr);
025b0302
ME		 4553 }
4554 else
4555 {
4556 if (reg)
4557 as_bad (".REG must use a label");
4558 else
4559 as_bad (".EQU must use a label");
4560 }
4561
4562 pa_undefine_label ();
4563 demand_empty_rest_of_line ();
025b0302
ME		 4564}
4565
8f78d0e9
KR		 4566/* Helper function. Does processing for the end of a function. This
4567 usually involves creating some relocations or building special
4568 symbols to mark the end of the function. */
4569
4570static void
025b0302
ME		 4571process_exit ()
4572{
4573 char *where;
4574
4575 where = frag_more (0);
aa8b30ed 4576
ff852e11 4577#ifdef OBJ_ELF
44c0de53
JL		 4578 /* Mark the end of the function, stuff away the location of the frag
4579 for the end of the function, and finally call pa_build_unwind_subspace
4580 to add an entry in the unwind table. */
4ff6f92a 4581 hppa_elf_mark_end_of_function ();
025b0302 4582 pa_build_unwind_subspace (last_call_info);
ff852e11
JL		 4583#else
4584 /* SOM defers building of unwind descriptors until the link phase.
4585 The assembler is responsible for creating an R_ENTRY relocation
4586 to mark the beginning of a region and hold the unwind bits, and
4587 for creating an R_EXIT relocation to mark the end of the region.
4588
4589 FIXME. ELF should be using the same conventions! The problem
4590 is an unwind requires too much relocation space. Hmmm. Maybe
4591 if we split the unwind bits up between the relocations which
4592 denote the entry and exit points. */
4593 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
75c28b49
JL		 4594 NULL, (offsetT) 0,
4595 NULL, 0, R_HPPA_EXIT, e_fsel, 0, 0,
4596 (int *) &last_call_info->ci_unwind.descriptor + 1);
ff852e11 4597#endif
025b0302
ME		 4598}
4599
8f78d0e9 4600/* Process a .EXIT pseudo-op. */
025b0302 4601
8f78d0e9
KR		 4602static void
4603pa_exit (unused)
4604 int unused;
4605{
60937ce7
JL		 4606 /* We must have a valid space and subspace. */
4607 pa_check_current_space_and_subspace ();
4608
025b0302
ME		 4609 if (!within_procedure)
4610 as_bad (".EXIT must appear within a procedure");
4611 else
4612 {
4613 if (!callinfo_found)
4614 as_bad ("Missing .callinfo");
4615 else
4616 {
4617 if (!within_entry_exit)
4618 as_bad ("No .ENTRY for this .EXIT");
4619 else
4620 {
4621 within_entry_exit = FALSE;
4622 process_exit ();
4623 }
4624 }
4625 }
4626 demand_empty_rest_of_line ();
025b0302
ME		 4627}
4628
8f78d0e9 4629/* Process a .EXPORT directive. This makes functions external
75c28b49 4630 and provides information such as argument relocation entries
8f78d0e9 4631 to callers. */
5cf4cd1b 4632
8f78d0e9
KR		 4633static void
4634pa_export (unused)
4635 int unused;
025b0302 4636{
8f78d0e9
KR		 4637 char *name, c, *p;
4638 symbolS *symbol;
025b0302
ME		 4639
4640 name = input_line_pointer;
4641 c = get_symbol_end ();
8f78d0e9
KR		 4642 /* Make sure the given symbol exists. */
4643 if ((symbol = symbol_find_or_make (name)) == NULL)
025b0302
ME		 4644 {
4645 as_bad ("Cannot define export symbol: %s\n", name);
4646 p = input_line_pointer;
4647 *p = c;
4648 input_line_pointer++;
4649 }
4650 else
4651 {
8f78d0e9
KR		 4652 /* OK. Set the external bits and process argument relocations. */
4653 S_SET_EXTERNAL (symbol);
025b0302
ME		 4654 p = input_line_pointer;
4655 *p = c;
4656 if (!is_end_of_statement ())
4657 {
4658 input_line_pointer++;
48153d49 4659 pa_type_args (symbol, 1);
025b0302
ME		 4660 }
4661 }
4662
4663 demand_empty_rest_of_line ();
025b0302
ME		 4664}
4665
8f78d0e9
KR		 4666/* Helper function to process arguments to a .EXPORT pseudo-op. */
4667
4668static void
48153d49 4669pa_type_args (symbolP, is_export)
8f78d0e9 4670 symbolS *symbolP;
48153d49 4671 int is_export;
025b0302 4672{
8f78d0e9
KR		 4673 char *name, c, *p;
4674 unsigned int temp, arg_reloc;
e75acd68 4675 pa_symbol_type type = SYMBOL_TYPE_UNKNOWN;
8f78d0e9 4676 obj_symbol_type *symbol = (obj_symbol_type *) symbolP->bsym;
025b0302
ME		 4677
4678 if (strncasecmp (input_line_pointer, "absolute", 8) == 0)
48153d49 4679
025b0302
ME		 4680 {
4681 input_line_pointer += 8;
9a182533 4682 symbolP->bsym->flags &= ~BSF_FUNCTION;
75c28b49 4683 S_SET_SEGMENT (symbolP, bfd_abs_section_ptr);
e75acd68 4684 type = SYMBOL_TYPE_ABSOLUTE;
025b0302
ME		 4685 }
4686 else if (strncasecmp (input_line_pointer, "code", 4) == 0)
9a182533
JL		 4687 {
4688 input_line_pointer += 4;
a721c80b 4689 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
c5e9ccd0 4690 instead one should be IMPORTing/EXPORTing ENTRY types.
a721c80b 4691
c5e9ccd0
JL		 4692 Complain if one tries to EXPORT a CODE type since that's never
4693 done. Both GCC and HP C still try to IMPORT CODE types, so
4694 silently fix them to be ENTRY types. */
a721c80b 4695 if (symbolP->bsym->flags & BSF_FUNCTION)
48153d49 4696 {
a721c80b
JL		 4697 if (is_export)
4698 as_tsktsk ("Using ENTRY rather than CODE in export directive for %s", symbolP->bsym->name);
4699
48153d49
JL		 4700 symbolP->bsym->flags |= BSF_FUNCTION;
4701 type = SYMBOL_TYPE_ENTRY;
4702 }
4703 else
4704 {
4705 symbolP->bsym->flags &= ~BSF_FUNCTION;
4706 type = SYMBOL_TYPE_CODE;
4707 }
9a182533 4708 }
025b0302 4709 else if (strncasecmp (input_line_pointer, "data", 4) == 0)
9a182533
JL		 4710 {
4711 input_line_pointer += 4;
4712 symbolP->bsym->flags &= ~BSF_FUNCTION;
e75acd68 4713 type = SYMBOL_TYPE_DATA;
9a182533 4714 }
025b0302
ME		 4715 else if ((strncasecmp (input_line_pointer, "entry", 5) == 0))
4716 {
4717 input_line_pointer += 5;
025b0302 4718 symbolP->bsym->flags |= BSF_FUNCTION;
e75acd68 4719 type = SYMBOL_TYPE_ENTRY;
025b0302
ME		 4720 }
4721 else if (strncasecmp (input_line_pointer, "millicode", 9) == 0)
4722 {
4723 input_line_pointer += 9;
9a182533 4724 symbolP->bsym->flags |= BSF_FUNCTION;
e75acd68 4725 type = SYMBOL_TYPE_MILLICODE;
025b0302
ME		 4726 }
4727 else if (strncasecmp (input_line_pointer, "plabel", 6) == 0)
4728 {
4729 input_line_pointer += 6;
9a182533 4730 symbolP->bsym->flags &= ~BSF_FUNCTION;
e75acd68 4731 type = SYMBOL_TYPE_PLABEL;
025b0302
ME		 4732 }
4733 else if (strncasecmp (input_line_pointer, "pri_prog", 8) == 0)
4734 {
4735 input_line_pointer += 8;
9a182533 4736 symbolP->bsym->flags |= BSF_FUNCTION;
e75acd68 4737 type = SYMBOL_TYPE_PRI_PROG;
025b0302
ME		 4738 }
4739 else if (strncasecmp (input_line_pointer, "sec_prog", 8) == 0)
4740 {
4741 input_line_pointer += 8;
9a182533 4742 symbolP->bsym->flags |= BSF_FUNCTION;
e75acd68 4743 type = SYMBOL_TYPE_SEC_PROG;
025b0302
ME		 4744 }
4745
e75acd68
JL		 4746 /* SOM requires much more information about symbol types
4747 than BFD understands. This is how we get this information
4748 to the SOM BFD backend. */
4749#ifdef obj_set_symbol_type
4750 obj_set_symbol_type (symbolP->bsym, (int) type);
4751#endif
4752
8f78d0e9
KR		 4753 /* Now that the type of the exported symbol has been handled,
4754 handle any argument relocation information. */
025b0302
ME		 4755 while (!is_end_of_statement ())
4756 {
4757 if (*input_line_pointer == ',')
4758 input_line_pointer++;
4759 name = input_line_pointer;
4760 c = get_symbol_end ();
8f78d0e9 4761 /* Argument sources. */
025b0302
ME		 4762 if ((strncasecmp (name, "argw", 4) == 0))
4763 {
4764 p = input_line_pointer;
4765 *p = c;
4766 input_line_pointer++;
4767 temp = atoi (name + 4);
4768 name = input_line_pointer;
4769 c = get_symbol_end ();
4770 arg_reloc = pa_align_arg_reloc (temp, pa_build_arg_reloc (name));
8f78d0e9 4771 symbol->tc_data.hppa_arg_reloc |= arg_reloc;
025b0302
ME		 4772 *input_line_pointer = c;
4773 }
8f78d0e9 4774 /* The return value. */
025b0302
ME		 4775 else if ((strncasecmp (name, "rtnval", 6)) == 0)
4776 {
4777 p = input_line_pointer;
4778 *p = c;
4779 input_line_pointer++;
4780 name = input_line_pointer;
4781 c = get_symbol_end ();
4782 arg_reloc = pa_build_arg_reloc (name);
8f78d0e9 4783 symbol->tc_data.hppa_arg_reloc |= arg_reloc;
025b0302
ME		 4784 *input_line_pointer = c;
4785 }
8f78d0e9 4786 /* Privelege level. */
025b0302
ME		 4787 else if ((strncasecmp (name, "priv_lev", 8)) == 0)
4788 {
4789 p = input_line_pointer;
4790 *p = c;
4791 input_line_pointer++;
025b0302
ME		 4792 temp = atoi (input_line_pointer);
4793 c = get_symbol_end ();
4794 *input_line_pointer = c;
025b0302
ME		 4795 }
4796 else
4797 {
4798 as_bad ("Undefined .EXPORT/.IMPORT argument (ignored): %s", name);
4799 p = input_line_pointer;
4800 *p = c;
4801 }
4802 if (!is_end_of_statement ())
4803 input_line_pointer++;
4804 }
4805}
4806
8f78d0e9
KR		 4807/* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
4808 assembly file must either be defined in the assembly file, or
4809 explicitly IMPORTED from another. */
4810
4811static void
4812pa_import (unused)
4813 int unused;
025b0302 4814{
8f78d0e9
KR		 4815 char *name, c, *p;
4816 symbolS *symbol;
025b0302
ME		 4817
4818 name = input_line_pointer;
4819 c = get_symbol_end ();
025b0302 4820
49ccc555
JL		 4821 symbol = symbol_find (name);
4822 /* Ugh. We might be importing a symbol defined earlier in the file,
4823 in which case all the code below will really screw things up
4824 (set the wrong segment, symbol flags & type, etc). */
4825 if (symbol == NULL || !S_IS_DEFINED (symbol))
025b0302 4826 {
49ccc555
JL		 4827 symbol = symbol_find_or_make (name);
4828 p = input_line_pointer;
4829 *p = c;
4830
4831 if (!is_end_of_statement ())
4832 {
4833 input_line_pointer++;
4834 pa_type_args (symbol, 0);
4835 }
4836 else
4837 {
4838 /* Sigh. To be compatable with the HP assembler and to help
75c28b49 4839 poorly written assembly code, we assign a type based on
49ccc555
JL		 4840 the the current segment. Note only BSF_FUNCTION really
4841 matters, we do not need to set the full SYMBOL_TYPE_* info. */
4842 if (now_seg == text_section)
4843 symbol->bsym->flags |= BSF_FUNCTION;
4844
4845 /* If the section is undefined, then the symbol is undefined
4846 Since this is an import, leave the section undefined. */
75c28b49 4847 S_SET_SEGMENT (symbol, bfd_und_section_ptr);
49ccc555 4848 }
025b0302
ME		 4849 }
4850 else
4851 {
49ccc555
JL		 4852 /* The symbol was already defined. Just eat everything up to
4853 the end of the current statement. */
4854 while (!is_end_of_statement ())
4855 input_line_pointer++;
025b0302
ME		 4856 }
4857
025b0302 4858 demand_empty_rest_of_line ();
025b0302
ME		 4859}
4860
8f78d0e9
KR		 4861/* Handle a .LABEL pseudo-op. */
4862
4863static void
4864pa_label (unused)
4865 int unused;
025b0302 4866{
8f78d0e9 4867 char *name, c, *p;
025b0302
ME		 4868
4869 name = input_line_pointer;
4870 c = get_symbol_end ();
025b0302
ME		 4871
4872 if (strlen (name) > 0)
4873 {
4874 colon (name);
4875 p = input_line_pointer;
4876 *p = c;
4877 }
4878 else
4879 {
4880 as_warn ("Missing label name on .LABEL");
4881 }
4882
4883 if (!is_end_of_statement ())
4884 {
4885 as_warn ("extra .LABEL arguments ignored.");
4886 ignore_rest_of_line ();
4887 }
4888 demand_empty_rest_of_line ();
025b0302
ME		 4889}
4890
8f78d0e9 4891/* Handle a .LEAVE pseudo-op. This is not supported yet. */
025b0302 4892
8f78d0e9
KR		 4893static void
4894pa_leave (unused)
4895 int unused;
4896{
60937ce7
JL		 4897 /* We must have a valid space and subspace. */
4898 pa_check_current_space_and_subspace ();
4899
c5e9ccd0 4900 abort ();
025b0302
ME		 4901}
4902
b81231b7
JL		 4903/* Handle a .LEVEL pseudo-op. */
4904
4905static void
4906pa_level (unused)
4907 int unused;
4908{
4909 char *level;
4910
4911 level = input_line_pointer;
4912 if (strncmp (level, "1.0", 3) == 0)
4913 {
4914 input_line_pointer += 3;
4915 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 10))
4916 as_warn ("could not set architecture and machine");
4917 }
4918 else if (strncmp (level, "1.1", 3) == 0)
4919 {
4920 input_line_pointer += 3;
4921 if (!bfd_set_arch_mach (stdoutput, bfd_arch_hppa, 11))
4922 as_warn ("could not set architecture and machine");
4923 }
4924 else
4925 {
4926 as_bad ("Unrecognized .LEVEL argument\n");
4927 ignore_rest_of_line ();
4928 }
4929 demand_empty_rest_of_line ();
4930}
4931
8f78d0e9
KR		 4932/* Handle a .ORIGIN pseudo-op. */
4933
4934static void
4935pa_origin (unused)
4936 int unused;
025b0302 4937{
60937ce7
JL		 4938 /* We must have a valid space and subspace. */
4939 pa_check_current_space_and_subspace ();
4940
8f78d0e9 4941 s_org (0);
025b0302 4942 pa_undefine_label ();
025b0302
ME		 4943}
4944
8f78d0e9
KR		 4945/* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
4946 is for static functions. FIXME. Should share more code with .EXPORT. */
5cf4cd1b 4947
8f78d0e9
KR		 4948static void
4949pa_param (unused)
4950 int unused;
5cf4cd1b 4951{
8f78d0e9
KR		 4952 char *name, c, *p;
4953 symbolS *symbol;
5cf4cd1b
KR		 4954
4955 name = input_line_pointer;
4956 c = get_symbol_end ();
5cf4cd1b 4957
8f78d0e9 4958 if ((symbol = symbol_find_or_make (name)) == NULL)
5cf4cd1b
KR		 4959 {
4960 as_bad ("Cannot define static symbol: %s\n", name);
4961 p = input_line_pointer;
4962 *p = c;
4963 input_line_pointer++;
4964 }
4965 else
4966 {
8f78d0e9 4967 S_CLEAR_EXTERNAL (symbol);
5cf4cd1b
KR		 4968 p = input_line_pointer;
4969 *p = c;
4970 if (!is_end_of_statement ())
4971 {
4972 input_line_pointer++;
48153d49 4973 pa_type_args (symbol, 0);
5cf4cd1b
KR		 4974 }
4975 }
4976
4977 demand_empty_rest_of_line ();
5cf4cd1b
KR		 4978}
4979
8f78d0e9
KR		 4980/* Handle a .PROC pseudo-op. It is used to mark the beginning
4981 of a procedure from a syntatical point of view. */
4982
4983static void
4984pa_proc (unused)
4985 int unused;
025b0302 4986{
8f78d0e9 4987 struct call_info *call_info;
60937ce7
JL		 4988
4989 /* We must have a valid space and subspace. */
4990 pa_check_current_space_and_subspace ();
4991
025b0302
ME		 4992 if (within_procedure)
4993 as_fatal ("Nested procedures");
4994
8f78d0e9 4995 /* Reset global variables for new procedure. */
025b0302
ME		 4996 callinfo_found = FALSE;
4997 within_procedure = TRUE;
025b0302 4998
8f78d0e9
KR		 4999 /* Create another call_info structure. */
5000 call_info = (struct call_info *) xmalloc (sizeof (struct call_info));
025b0302
ME		 5001
5002 if (!call_info)
5003 as_fatal ("Cannot allocate unwind descriptor\n");
5004
8f78d0e9 5005 bzero (call_info, sizeof (struct call_info));
025b0302
ME		 5006
5007 call_info->ci_next = NULL;
5008
5009 if (call_info_root == NULL)
5010 {
5011 call_info_root = call_info;
5012 last_call_info = call_info;
5013 }
5014 else
5015 {
5016 last_call_info->ci_next = call_info;
5017 last_call_info = call_info;
5018 }
5019
5020 /* set up defaults on call_info structure */
5021
5022 call_info->ci_unwind.descriptor.cannot_unwind = 0;
5023 call_info->ci_unwind.descriptor.region_desc = 1;
8f78d0e9 5024 call_info->ci_unwind.descriptor.hpux_interrupt_marker = 0;
025b0302
ME		 5025
5026 /* If we got a .PROC pseudo-op, we know that the function is defined
8f78d0e9 5027 locally. Make sure it gets into the symbol table. */
025b0302 5028 {
8f78d0e9 5029 label_symbol_struct *label_symbol = pa_get_label ();
025b0302 5030
8f78d0e9 5031 if (label_symbol)
025b0302 5032 {
8f78d0e9 5033 if (label_symbol->lss_label)
025b0302 5034 {
8f78d0e9
KR		 5035 last_call_info->start_symbol = label_symbol->lss_label;
5036 label_symbol->lss_label->bsym->flags |= BSF_FUNCTION;
025b0302
ME		 5037 }
5038 else
4047ff1d 5039 as_bad ("Missing function name for .PROC (corrupted label chain)");
025b0302
ME		 5040 }
5041 else
4047ff1d 5042 last_call_info->start_symbol = NULL;
025b0302
ME		 5043 }
5044
5045 demand_empty_rest_of_line ();
025b0302
ME		 5046}
5047
75c28b49 5048/* Process the syntatical end of a procedure. Make sure all the
8f78d0e9
KR		 5049 appropriate pseudo-ops were found within the procedure. */
5050
5051static void
5052pa_procend (unused)
5053 int unused;
025b0302
ME		 5054{
5055
60937ce7
JL		 5056 /* We must have a valid space and subspace. */
5057 pa_check_current_space_and_subspace ();
5058
caed9e82
JL		 5059 /* If we are within a procedure definition, make sure we've
5060 defined a label for the procedure; handle case where the
75c28b49 5061 label was defined after the .PROC directive.
caed9e82
JL		 5062
5063 Note there's not need to diddle with the segment or fragment
5064 for the label symbol in this case. We have already switched
5065 into the new $CODE$ subspace at this point. */
5066 if (within_procedure && last_call_info->start_symbol == NULL)
5067 {
5068 label_symbol_struct *label_symbol = pa_get_label ();
5069
5070 if (label_symbol)
5071 {
5072 if (label_symbol->lss_label)
5073 {
5074 last_call_info->start_symbol = label_symbol->lss_label;
5075 label_symbol->lss_label->bsym->flags |= BSF_FUNCTION;
5076#ifdef OBJ_SOM
5077 /* Also handle allocation of a fixup to hold the unwind
5078 information when the label appears after the proc/procend. */
5079 if (within_entry_exit)
5080 {
5081 char *where = frag_more (0);
5082
5083 fix_new_hppa (frag_now, where - frag_now->fr_literal, 0,
75c28b49 5084 NULL, (offsetT) 0, NULL,
caed9e82 5085 0, R_HPPA_ENTRY, e_fsel, 0, 0,
75c28b49 5086 (int *) &last_call_info->ci_unwind.descriptor);
caed9e82
JL		 5087 }
5088#endif
5089 }
5090 else
5091 as_bad ("Missing function name for .PROC (corrupted label chain)");
5092 }
5093 else
5094 as_bad ("Missing function name for .PROC");
5095 }
05210990 5096
025b0302
ME		 5097 if (!within_procedure)
5098 as_bad ("misplaced .procend");
5099
5100 if (!callinfo_found)
5101 as_bad ("Missing .callinfo for this procedure");
5102
5103 if (within_entry_exit)
5104 as_bad ("Missing .EXIT for a .ENTRY");
5105
4ff6f92a
JL		 5106#ifdef OBJ_ELF
5107 /* ELF needs to mark the end of each function so that it can compute
5108 the size of the function (apparently its needed in the symbol table). */
5109 hppa_elf_mark_end_of_function ();
5110#endif
5111
025b0302
ME		 5112 within_procedure = FALSE;
5113 demand_empty_rest_of_line ();
fca59f9d 5114 pa_undefine_label ();
025b0302
ME		 5115}
5116
8f78d0e9
KR		 5117/* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
5118 then create a new space entry to hold the information specified
5119 by the parameters to the .SPACE directive. */
5120
5121static sd_chain_struct *
025b0302
ME		 5122pa_parse_space_stmt (space_name, create_flag)
5123 char *space_name;
5124 int create_flag;
5125{
8f78d0e9
KR		 5126 char *name, *ptemp, c;
5127 char loadable, defined, private, sort;
9de7c1fc 5128 int spnum, temp;
3b9a72c5 5129 asection *seg = NULL;
8f78d0e9 5130 sd_chain_struct *space;
025b0302
ME		 5131
5132 /* load default values */
5133 spnum = 0;
3b9a72c5 5134 sort = 0;
025b0302
ME		 5135 loadable = TRUE;
5136 defined = TRUE;
5137 private = FALSE;
4047ff1d 5138 if (strcmp (space_name, "$TEXT$") == 0)
025b0302 5139 {
0f3b419c 5140 seg = pa_def_spaces[0].segment;
9de7c1fc
JL		 5141 defined = pa_def_spaces[0].defined;
5142 private = pa_def_spaces[0].private;
0f3b419c 5143 sort = pa_def_spaces[0].sort;
9de7c1fc 5144 spnum = pa_def_spaces[0].spnum;
025b0302 5145 }
4047ff1d 5146 else if (strcmp (space_name, "$PRIVATE$") == 0)
025b0302 5147 {
0f3b419c 5148 seg = pa_def_spaces[1].segment;
9de7c1fc
JL		 5149 defined = pa_def_spaces[1].defined;
5150 private = pa_def_spaces[1].private;
0f3b419c 5151 sort = pa_def_spaces[1].sort;
9de7c1fc 5152 spnum = pa_def_spaces[1].spnum;
025b0302
ME		 5153 }
5154
5155 if (!is_end_of_statement ())
5156 {
5157 print_errors = FALSE;
5158 ptemp = input_line_pointer + 1;
8f78d0e9 5159 /* First see if the space was specified as a number rather than
75c28b49 5160 as a name. According to the PA assembly manual the rest of
8f78d0e9 5161 the line should be ignored. */
9de7c1fc
JL		 5162 temp = pa_parse_number (&ptemp, 0);
5163 if (temp >= 0)
5164 {
5165 spnum = temp;
5166 input_line_pointer = ptemp;
5167 }
025b0302
ME		 5168 else
5169 {
5170 while (!is_end_of_statement ())
5171 {
5172 input_line_pointer++;
5173 name = input_line_pointer;
5174 c = get_symbol_end ();
4047ff1d 5175 if ((strncasecmp (name, "spnum", 5) == 0))
025b0302 5176 {
8f78d0e9 5177 *input_line_pointer = c;
025b0302 5178 input_line_pointer++;
8f78d0e9 5179 spnum = get_absolute_expression ();
025b0302 5180 }
4047ff1d 5181 else if ((strncasecmp (name, "sort", 4) == 0))
025b0302 5182 {
8f78d0e9 5183 *input_line_pointer = c;
025b0302 5184 input_line_pointer++;
8f78d0e9 5185 sort = get_absolute_expression ();
025b0302 5186 }
4047ff1d 5187 else if ((strncasecmp (name, "unloadable", 10) == 0))
025b0302 5188 {
8f78d0e9 5189 *input_line_pointer = c;
025b0302
ME		 5190 loadable = FALSE;
5191 }
4047ff1d 5192 else if ((strncasecmp (name, "notdefined", 10) == 0))
025b0302 5193 {
8f78d0e9 5194 *input_line_pointer = c;
025b0302
ME		 5195 defined = FALSE;
5196 }
4047ff1d 5197 else if ((strncasecmp (name, "private", 7) == 0))
025b0302 5198 {
8f78d0e9 5199 *input_line_pointer = c;
025b0302
ME		 5200 private = TRUE;
5201 }
5202 else
3515a504
JL		 5203 {
5204 as_bad ("Invalid .SPACE argument");
5205 *input_line_pointer = c;
c5e9ccd0 5206 if (!is_end_of_statement ())
3515a504
JL		 5207 input_line_pointer++;
5208 }
025b0302
ME		 5209 }
5210 }
5211 print_errors = TRUE;
5212 }
8f78d0e9 5213
3b9a72c5
JL		 5214 if (create_flag && seg == NULL)
5215 seg = subseg_new (space_name, 0);
c5e9ccd0 5216
8f78d0e9 5217 /* If create_flag is nonzero, then create the new space with
75c28b49 5218 the attributes computed above. Else set the values in
8f78d0e9
KR		 5219 an already existing space -- this can only happen for
5220 the first occurence of a built-in space. */
025b0302 5221 if (create_flag)
8f78d0e9
KR		 5222 space = create_new_space (space_name, spnum, loadable, defined,
5223 private, sort, seg, 1);
025b0302 5224 else
8f78d0e9 5225 {
025b0302
ME		 5226 space = is_defined_space (space_name);
5227 SPACE_SPNUM (space) = spnum;
025b0302 5228 SPACE_DEFINED (space) = defined & 1;
8f78d0e9 5229 SPACE_USER_DEFINED (space) = 1;
025b0302 5230 }
548ea75b
JL		 5231
5232#ifdef obj_set_section_attributes
5233 obj_set_section_attributes (seg, defined, private, sort, spnum);
5234#endif
5235
025b0302
ME		 5236 return space;
5237}
5238
8f78d0e9
KR		 5239/* Handle a .SPACE pseudo-op; this switches the current space to the
5240 given space, creating the new space if necessary. */
5241
5242static void
5243pa_space (unused)
5244 int unused;
025b0302 5245{
aa8b30ed 5246 char *name, c, *space_name, *save_s;
8f78d0e9
KR		 5247 int temp;
5248 sd_chain_struct *sd_chain;
025b0302
ME		 5249
5250 if (within_procedure)
5251 {
5252 as_bad ("Can\'t change spaces within a procedure definition. Ignored");
5253 ignore_rest_of_line ();
5254 }
5255 else
5256 {
8f78d0e9
KR		 5257 /* Check for some of the predefined spaces. FIXME: most of the code
5258 below is repeated several times, can we extract the common parts
5259 and place them into a subroutine or something similar? */
4047ff1d
JL		 5260 /* FIXME Is this (and the next IF stmt) really right?
5261 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
5262 if (strncmp (input_line_pointer, "$TEXT$", 6) == 0)
025b0302
ME		 5263 {
5264 input_line_pointer += 6;
5265 sd_chain = is_defined_space ("$TEXT$");
5266 if (sd_chain == NULL)
5267 sd_chain = pa_parse_space_stmt ("$TEXT$", 1);
8f78d0e9 5268 else if (SPACE_USER_DEFINED (sd_chain) == 0)
025b0302
ME		 5269 sd_chain = pa_parse_space_stmt ("$TEXT$", 0);
5270
5271 current_space = sd_chain;
80aab579 5272 subseg_set (text_section, sd_chain->sd_last_subseg);
8f78d0e9
KR		 5273 current_subspace
5274 = pa_subsegment_to_subspace (text_section,
5275 sd_chain->sd_last_subseg);
025b0302
ME		 5276 demand_empty_rest_of_line ();
5277 return;
5278 }
4047ff1d 5279 if (strncmp (input_line_pointer, "$PRIVATE$", 9) == 0)
025b0302
ME		 5280 {
5281 input_line_pointer += 9;
5282 sd_chain = is_defined_space ("$PRIVATE$");
5283 if (sd_chain == NULL)
5284 sd_chain = pa_parse_space_stmt ("$PRIVATE$", 1);
8f78d0e9 5285 else if (SPACE_USER_DEFINED (sd_chain) == 0)
025b0302
ME		 5286 sd_chain = pa_parse_space_stmt ("$PRIVATE$", 0);
5287
5288 current_space = sd_chain;
80aab579 5289 subseg_set (data_section, sd_chain->sd_last_subseg);
8f78d0e9
KR		 5290 current_subspace
5291 = pa_subsegment_to_subspace (data_section,
5292 sd_chain->sd_last_subseg);
025b0302
ME		 5293 demand_empty_rest_of_line ();
5294 return;
5295 }
8f78d0e9
KR		 5296 if (!strncasecmp (input_line_pointer,
5297 GDB_DEBUG_SPACE_NAME,
5298 strlen (GDB_DEBUG_SPACE_NAME)))
025b0302
ME		 5299 {
5300 input_line_pointer += strlen (GDB_DEBUG_SPACE_NAME);
5301 sd_chain = is_defined_space (GDB_DEBUG_SPACE_NAME);
5302 if (sd_chain == NULL)
5303 sd_chain = pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME, 1);
8f78d0e9 5304 else if (SPACE_USER_DEFINED (sd_chain) == 0)
025b0302
ME		 5305 sd_chain = pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME, 0);
5306
5307 current_space = sd_chain;
80aab579 5308
5cf4cd1b 5309 {
8f78d0e9
KR		 5310 asection *gdb_section
5311 = bfd_make_section_old_way (stdoutput, GDB_DEBUG_SPACE_NAME);
5312
8f78d0e9
KR		 5313 subseg_set (gdb_section, sd_chain->sd_last_subseg);
5314 current_subspace
5315 = pa_subsegment_to_subspace (gdb_section,
5316 sd_chain->sd_last_subseg);
5cf4cd1b 5317 }
025b0302
ME		 5318 demand_empty_rest_of_line ();
5319 return;
5320 }
5321
8f78d0e9 5322 /* It could be a space specified by number. */
aa8b30ed
JL		 5323 print_errors = 0;
5324 save_s = input_line_pointer;
8f78d0e9 5325 if ((temp = pa_parse_number (&input_line_pointer, 0)) >= 0)
025b0302 5326 {
655f3ef4 5327 if ((sd_chain = pa_find_space_by_number (temp)))
025b0302
ME		 5328 {
5329 current_space = sd_chain;
8f78d0e9 5330
80aab579 5331 subseg_set (sd_chain->sd_seg, sd_chain->sd_last_subseg);
8f78d0e9
KR		 5332 current_subspace
5333 = pa_subsegment_to_subspace (sd_chain->sd_seg,
5334 sd_chain->sd_last_subseg);
025b0302
ME		 5335 demand_empty_rest_of_line ();
5336 return;
5337 }
5338 }
5339
8f78d0e9 5340 /* Not a number, attempt to create a new space. */
aa8b30ed
JL		 5341 print_errors = 1;
5342 input_line_pointer = save_s;
025b0302
ME		 5343 name = input_line_pointer;
5344 c = get_symbol_end ();
8f78d0e9 5345 space_name = xmalloc (strlen (name) + 1);
025b0302
ME		 5346 strcpy (space_name, name);
5347 *input_line_pointer = c;
5348
5349 sd_chain = pa_parse_space_stmt (space_name, 1);
5350 current_space = sd_chain;
8f78d0e9 5351
80aab579 5352 subseg_set (sd_chain->sd_seg, sd_chain->sd_last_subseg);
025b0302
ME		 5353 current_subspace = pa_subsegment_to_subspace (sd_chain->sd_seg,
5354 sd_chain->sd_last_subseg);
5355 demand_empty_rest_of_line ();
5356 }
025b0302
ME		 5357}
5358
c5e9ccd0 5359/* Switch to a new space. (I think). FIXME. */
8f78d0e9
KR		 5360
5361static void
5362pa_spnum (unused)
5363 int unused;
025b0302 5364{
8f78d0e9
KR		 5365 char *name;
5366 char c;
5367 char *p;
5368 sd_chain_struct *space;
025b0302
ME		 5369
5370 name = input_line_pointer;
5371 c = get_symbol_end ();
5372 space = is_defined_space (name);
5373 if (space)
5374 {
5375 p = frag_more (4);
025b0302
ME		 5376 md_number_to_chars (p, SPACE_SPNUM (space), 4);
5377 }
5378 else
5379 as_warn ("Undefined space: '%s' Assuming space number = 0.", name);
5380
5381 *input_line_pointer = c;
5382 demand_empty_rest_of_line ();
025b0302
ME		 5383}
5384
75c28b49 5385/* If VALUE is an exact power of two between zero and 2^31, then
aa8b30ed 5386 return log2 (VALUE). Else return -1. */
8f78d0e9
KR		 5387
5388static int
aa8b30ed 5389log2 (value)
025b0302
ME		 5390 int value;
5391{
8f78d0e9 5392 int shift = 0;
025b0302 5393
025b0302
ME		 5394 while ((1 << shift) != value && shift < 32)
5395 shift++;
5396
5397 if (shift >= 32)
aa8b30ed 5398 return -1;
8f78d0e9 5399 else
aa8b30ed 5400 return shift;
025b0302
ME		 5401}
5402
3b9a72c5 5403/* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
75c28b49 5404 given subspace, creating the new subspace if necessary.
8f78d0e9 5405
75c28b49 5406 FIXME. Should mirror pa_space more closely, in particular how
8f78d0e9
KR		 5407 they're broken up into subroutines. */
5408
5409static void
83b59013
JL		 5410pa_subspace (create_new)
5411 int create_new;
025b0302 5412{
3b9a72c5 5413 char *name, *ss_name, *alias, c;
8f78d0e9 5414 char loadable, code_only, common, dup_common, zero, sort;
3b9a72c5 5415 int i, access, space_index, alignment, quadrant, applicable, flags;
8f78d0e9
KR		 5416 sd_chain_struct *space;
5417 ssd_chain_struct *ssd;
3b9a72c5 5418 asection *section;
025b0302 5419
60937ce7
JL		 5420 if (current_space == NULL)
5421 as_fatal ("Must be in a space before changing or declaring subspaces.\n");
5422
025b0302
ME		 5423 if (within_procedure)
5424 {
5425 as_bad ("Can\'t change subspaces within a procedure definition. Ignored");
5426 ignore_rest_of_line ();
5427 }
5428 else
5429 {
5430 name = input_line_pointer;
5431 c = get_symbol_end ();
025b0302
ME		 5432 ss_name = xmalloc (strlen (name) + 1);
5433 strcpy (ss_name, name);
025b0302
ME		 5434 *input_line_pointer = c;
5435
8f78d0e9 5436 /* Load default values. */
025b0302
ME		 5437 sort = 0;
5438 access = 0x7f;
5439 loadable = 1;
5440 common = 0;
5441 dup_common = 0;
5442 code_only = 0;
5443 zero = 0;
8f78d0e9 5444 space_index = ~0;
e67b3aa3 5445 alignment = 1;
025b0302 5446 quadrant = 0;
3b9a72c5 5447 alias = NULL;
025b0302 5448
3b9a72c5 5449 space = current_space;
83b59013
JL		 5450 if (create_new)
5451 ssd = NULL;
5452 else
5453 ssd = is_defined_subspace (ss_name);
47f45d66 5454 /* Allow user to override the builtin attributes of subspaces. But
c5e9ccd0 5455 only allow the attributes to be changed once! */
47f45d66 5456 if (ssd && SUBSPACE_DEFINED (ssd))
025b0302 5457 {
8f78d0e9 5458 subseg_set (ssd->ssd_seg, ssd->ssd_subseg);
dc1b1221 5459 current_subspace = ssd;
8f78d0e9
KR		 5460 if (!is_end_of_statement ())
5461 as_warn ("Parameters of an existing subspace can\'t be modified");
5462 demand_empty_rest_of_line ();
5463 return;
025b0302
ME		 5464 }
5465 else
5466 {
3b9a72c5
JL		 5467 /* A new subspace. Load default values if it matches one of
5468 the builtin subspaces. */
025b0302
ME		 5469 i = 0;
5470 while (pa_def_subspaces[i].name)
5471 {
5472 if (strcasecmp (pa_def_subspaces[i].name, ss_name) == 0)
5473 {
5474 loadable = pa_def_subspaces[i].loadable;
5475 common = pa_def_subspaces[i].common;
5476 dup_common = pa_def_subspaces[i].dup_common;
5477 code_only = pa_def_subspaces[i].code_only;
5478 zero = pa_def_subspaces[i].zero;
5479 space_index = pa_def_subspaces[i].space_index;
8f78d0e9 5480 alignment = pa_def_subspaces[i].alignment;
025b0302
ME		 5481 quadrant = pa_def_subspaces[i].quadrant;
5482 access = pa_def_subspaces[i].access;
5483 sort = pa_def_subspaces[i].sort;
3b9a72c5
JL		 5484 if (USE_ALIASES && pa_def_subspaces[i].alias)
5485 alias = pa_def_subspaces[i].alias;
025b0302
ME		 5486 break;
5487 }
5488 i++;
5489 }
5490 }
5491
8f78d0e9
KR		 5492 /* We should be working with a new subspace now. Fill in
5493 any information as specified by the user. */
025b0302
ME		 5494 if (!is_end_of_statement ())
5495 {
5496 input_line_pointer++;
5497 while (!is_end_of_statement ())
5498 {
5499 name = input_line_pointer;
5500 c = get_symbol_end ();
4047ff1d 5501 if ((strncasecmp (name, "quad", 4) == 0))
025b0302
ME		 5502 {
5503 *input_line_pointer = c;
5504 input_line_pointer++;
8f78d0e9 5505 quadrant = get_absolute_expression ();
025b0302 5506 }
4047ff1d 5507 else if ((strncasecmp (name, "align", 5) == 0))
025b0302
ME		 5508 {
5509 *input_line_pointer = c;
5510 input_line_pointer++;
8f78d0e9 5511 alignment = get_absolute_expression ();
aa8b30ed 5512 if (log2 (alignment) == -1)
025b0302
ME		 5513 {
5514 as_bad ("Alignment must be a power of 2");
5515 alignment = 1;
5516 }
5517 }
4047ff1d 5518 else if ((strncasecmp (name, "access", 6) == 0))
025b0302
ME		 5519 {
5520 *input_line_pointer = c;
5521 input_line_pointer++;
8f78d0e9 5522 access = get_absolute_expression ();
025b0302 5523 }
4047ff1d 5524 else if ((strncasecmp (name, "sort", 4) == 0))
025b0302
ME		 5525 {
5526 *input_line_pointer = c;
5527 input_line_pointer++;
8f78d0e9 5528 sort = get_absolute_expression ();
025b0302 5529 }
4047ff1d 5530 else if ((strncasecmp (name, "code_only", 9) == 0))
025b0302
ME		 5531 {
5532 *input_line_pointer = c;
5533 code_only = 1;
5534 }
4047ff1d 5535 else if ((strncasecmp (name, "unloadable", 10) == 0))
025b0302
ME		 5536 {
5537 *input_line_pointer = c;
5538 loadable = 0;
5539 }
4047ff1d 5540 else if ((strncasecmp (name, "common", 6) == 0))
025b0302
ME		 5541 {
5542 *input_line_pointer = c;
5543 common = 1;
5544 }
4047ff1d 5545 else if ((strncasecmp (name, "dup_comm", 8) == 0))
025b0302
ME		 5546 {
5547 *input_line_pointer = c;
5548 dup_common = 1;
5549 }
4047ff1d 5550 else if ((strncasecmp (name, "zero", 4) == 0))
025b0302
ME		 5551 {
5552 *input_line_pointer = c;
5553 zero = 1;
5554 }
4047ff1d 5555 else if ((strncasecmp (name, "first", 5) == 0))
8f78d0e9 5556 as_bad ("FIRST not supported as a .SUBSPACE argument");
025b0302 5557 else
8f78d0e9 5558 as_bad ("Invalid .SUBSPACE argument");
025b0302
ME		 5559 if (!is_end_of_statement ())
5560 input_line_pointer++;
5561 }
5562 }
8f78d0e9 5563
3b9a72c5 5564 /* Compute a reasonable set of BFD flags based on the information
c5e9ccd0 5565 in the .subspace directive. */
3b9a72c5
JL		 5566 applicable = bfd_applicable_section_flags (stdoutput);
5567 flags = 0;
5568 if (loadable)
5569 flags |= (SEC_ALLOC | SEC_LOAD);
5570 if (code_only)
5571 flags |= SEC_CODE;
5572 if (common || dup_common)
5573 flags |= SEC_IS_COMMON;
5574
b8f7596c
JL		 5575 flags |= SEC_RELOC | SEC_HAS_CONTENTS;
5576
3b9a72c5
JL		 5577 /* This is a zero-filled subspace (eg BSS). */
5578 if (zero)
b8f7596c 5579 flags &= ~(SEC_LOAD | SEC_HAS_CONTENTS);
3b9a72c5 5580
3b9a72c5
JL		 5581 applicable &= flags;
5582
75c28b49 5583 /* If this is an existing subspace, then we want to use the
c5e9ccd0 5584 segment already associated with the subspace.
3b9a72c5 5585
c5e9ccd0
JL		 5586 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
5587 lots of sections. It might be a problem in the PA ELF
5588 code, I do not know yet. For now avoid creating anything
5589 but the "standard" sections for ELF. */
83b59013
JL		 5590 if (create_new)
5591 section = subseg_force_new (ss_name, 0);
5592 else if (ssd)
3b9a72c5 5593 section = ssd->ssd_seg;
47f45d66 5594 else if (alias)
3b9a72c5 5595 section = subseg_new (alias, 0);
c5e9ccd0 5596 else if (!alias && USE_ALIASES)
3b9a72c5
JL		 5597 {
5598 as_warn ("Ignoring subspace decl due to ELF BFD bugs.");
5599 demand_empty_rest_of_line ();
5600 return;
5601 }
c5e9ccd0 5602 else
3b9a72c5
JL		 5603 section = subseg_new (ss_name, 0);
5604
b4682e51
JL		 5605 if (zero)
5606 seg_info (section)->bss = 1;
5607
3b9a72c5
JL		 5608 /* Now set the flags. */
5609 bfd_set_section_flags (stdoutput, section, applicable);
5610
5611 /* Record any alignment request for this section. */
5612 record_alignment (section, log2 (alignment));
5613
5614 /* Set the starting offset for this section. */
5615 bfd_set_section_vma (stdoutput, section,
5616 pa_subspace_start (space, quadrant));
c5e9ccd0 5617
8f78d0e9 5618 /* Now that all the flags are set, update an existing subspace,
3b9a72c5 5619 or create a new one. */
025b0302 5620 if (ssd)
3b9a72c5
JL		 5621
5622 current_subspace = update_subspace (space, ss_name, loadable,
5623 code_only, common, dup_common,
5624 sort, zero, access, space_index,
c5e9ccd0 5625 alignment, quadrant,
47f45d66 5626 section);
025b0302 5627 else
8f78d0e9
KR		 5628 current_subspace = create_new_subspace (space, ss_name, loadable,
5629 code_only, common,
5630 dup_common, zero, sort,
5631 access, space_index,
c5e9ccd0 5632 alignment, quadrant, section);
025b0302
ME		 5633
5634 demand_empty_rest_of_line ();
3b9a72c5 5635 current_subspace->ssd_seg = section;
80aab579 5636 subseg_set (current_subspace->ssd_seg, current_subspace->ssd_subseg);
025b0302 5637 }
47f45d66 5638 SUBSPACE_DEFINED (current_subspace) = 1;
025b0302
ME		 5639}
5640
025b0302 5641
8f78d0e9 5642/* Create default space and subspace dictionaries. */
025b0302 5643
c5e9ccd0 5644static void
025b0302
ME		 5645pa_spaces_begin ()
5646{
025b0302 5647 int i;
025b0302
ME		 5648
5649 space_dict_root = NULL;
5650 space_dict_last = NULL;
5651
025b0302
ME		 5652 i = 0;
5653 while (pa_def_spaces[i].name)
5654 {
3b9a72c5
JL		 5655 char *name;
5656
5657 /* Pick the right name to use for the new section. */
5658 if (pa_def_spaces[i].alias && USE_ALIASES)
5659 name = pa_def_spaces[i].alias;
025b0302 5660 else
c5e9ccd0 5661 name = pa_def_spaces[i].name;
025b0302 5662
3b9a72c5 5663 pa_def_spaces[i].segment = subseg_new (name, 0);
025b0302
ME		 5664 create_new_space (pa_def_spaces[i].name, pa_def_spaces[i].spnum,
5665 pa_def_spaces[i].loadable, pa_def_spaces[i].defined,
8f78d0e9
KR		 5666 pa_def_spaces[i].private, pa_def_spaces[i].sort,
5667 pa_def_spaces[i].segment, 0);
025b0302
ME		 5668 i++;
5669 }
5670
5671 i = 0;
5672 while (pa_def_subspaces[i].name)
5673 {
3b9a72c5
JL		 5674 char *name;
5675 int applicable, subsegment;
5676 asection *segment = NULL;
5677 sd_chain_struct *space;
5678
5679 /* Pick the right name for the new section and pick the right
c5e9ccd0 5680 subsegment number. */
3b9a72c5 5681 if (pa_def_subspaces[i].alias && USE_ALIASES)
025b0302 5682 {
3b9a72c5
JL		 5683 name = pa_def_subspaces[i].alias;
5684 subsegment = pa_def_subspaces[i].subsegment;
025b0302
ME		 5685 }
5686 else
3b9a72c5
JL		 5687 {
5688 name = pa_def_subspaces[i].name;
5689 subsegment = 0;
5690 }
c5e9ccd0 5691
3b9a72c5
JL		 5692 /* Create the new section. */
5693 segment = subseg_new (name, subsegment);
5694
5695
5696 /* For SOM we want to replace the standard .text, .data, and .bss
9de7c1fc
JL		 5697 sections with our own. We also want to set BFD flags for
5698 all the built-in subspaces. */
c5e9ccd0 5699 if (!strcmp (pa_def_subspaces[i].name, "$CODE$") && !USE_ALIASES)
3b9a72c5
JL		 5700 {
5701 text_section = segment;
5702 applicable = bfd_applicable_section_flags (stdoutput);
9de7c1fc 5703 bfd_set_section_flags (stdoutput, segment,
c5e9ccd0
JL		 5704 applicable & (SEC_ALLOC | SEC_LOAD
5705 | SEC_RELOC | SEC_CODE
5706 | SEC_READONLY
3b9a72c5
JL		 5707 | SEC_HAS_CONTENTS));
5708 }
c5e9ccd0 5709 else if (!strcmp (pa_def_subspaces[i].name, "$DATA$") && !USE_ALIASES)
3b9a72c5
JL		 5710 {
5711 data_section = segment;
5712 applicable = bfd_applicable_section_flags (stdoutput);
9de7c1fc 5713 bfd_set_section_flags (stdoutput, segment,
c5e9ccd0 5714 applicable & (SEC_ALLOC | SEC_LOAD
3b9a72c5
JL		 5715 | SEC_RELOC
5716 | SEC_HAS_CONTENTS));
c5e9ccd0
JL		 5717
5718
3b9a72c5 5719 }
c5e9ccd0 5720 else if (!strcmp (pa_def_subspaces[i].name, "$BSS$") && !USE_ALIASES)
3b9a72c5
JL		 5721 {
5722 bss_section = segment;
5723 applicable = bfd_applicable_section_flags (stdoutput);
9de7c1fc 5724 bfd_set_section_flags (stdoutput, segment,
3b9a72c5
JL		 5725 applicable & SEC_ALLOC);
5726 }
9de7c1fc
JL		 5727 else if (!strcmp (pa_def_subspaces[i].name, "$LIT$") && !USE_ALIASES)
5728 {
5729 applicable = bfd_applicable_section_flags (stdoutput);
5730 bfd_set_section_flags (stdoutput, segment,
5731 applicable & (SEC_ALLOC | SEC_LOAD
5732 | SEC_RELOC
5733 | SEC_READONLY
5734 | SEC_HAS_CONTENTS));
5735 }
b81231b7
JL		 5736 else if (!strcmp (pa_def_subspaces[i].name, "$MILLICODE$")
5737 && !USE_ALIASES)
5738 {
5739 applicable = bfd_applicable_section_flags (stdoutput);
5740 bfd_set_section_flags (stdoutput, segment,
5741 applicable & (SEC_ALLOC | SEC_LOAD
5742 | SEC_RELOC
5743 | SEC_READONLY
5744 | SEC_HAS_CONTENTS));
5745 }
9de7c1fc
JL		 5746 else if (!strcmp (pa_def_subspaces[i].name, "$UNWIND$") && !USE_ALIASES)
5747 {
5748 applicable = bfd_applicable_section_flags (stdoutput);
5749 bfd_set_section_flags (stdoutput, segment,
5750 applicable & (SEC_ALLOC | SEC_LOAD
5751 | SEC_RELOC
5752 | SEC_READONLY
5753 | SEC_HAS_CONTENTS));
5754 }
3b9a72c5
JL		 5755
5756 /* Find the space associated with this subspace. */
5757 space = pa_segment_to_space (pa_def_spaces[pa_def_subspaces[i].
5758 def_space_index].segment);
5759 if (space == NULL)
5760 {
5761 as_fatal ("Internal error: Unable to find containing space for %s.",
5762 pa_def_subspaces[i].name);
5763 }
5764
5765 create_new_subspace (space, name,
5766 pa_def_subspaces[i].loadable,
5767 pa_def_subspaces[i].code_only,
5768 pa_def_subspaces[i].common,
5769 pa_def_subspaces[i].dup_common,
5770 pa_def_subspaces[i].zero,
5771 pa_def_subspaces[i].sort,
5772 pa_def_subspaces[i].access,
5773 pa_def_subspaces[i].space_index,
5774 pa_def_subspaces[i].alignment,
5775 pa_def_subspaces[i].quadrant,
5776 segment);
025b0302
ME		 5777 i++;
5778 }
5779}
5780
8f78d0e9
KR		 5781
5782
5783/* Create a new space NAME, with the appropriate flags as defined
dd2f509f 5784 by the given parameters. */
8f78d0e9
KR		 5785
5786static sd_chain_struct *
5787create_new_space (name, spnum, loadable, defined, private,
5788 sort, seg, user_defined)
025b0302
ME		 5789 char *name;
5790 int spnum;
de3ffc7a
JL		 5791 int loadable;
5792 int defined;
5793 int private;
5794 int sort;
025b0302 5795 asection *seg;
8f78d0e9 5796 int user_defined;
025b0302 5797{
8f78d0e9
KR		 5798 sd_chain_struct *chain_entry;
5799
5800 chain_entry = (sd_chain_struct *) xmalloc (sizeof (sd_chain_struct));
025b0302 5801 if (!chain_entry)
8f78d0e9
KR		 5802 as_fatal ("Out of memory: could not allocate new space chain entry: %s\n",
5803 name);
025b0302
ME		 5804
5805 SPACE_NAME (chain_entry) = (char *) xmalloc (strlen (name) + 1);
5806 strcpy (SPACE_NAME (chain_entry), name);
8f78d0e9
KR		 5807 SPACE_DEFINED (chain_entry) = defined;
5808 SPACE_USER_DEFINED (chain_entry) = user_defined;
8f78d0e9 5809 SPACE_SPNUM (chain_entry) = spnum;
025b0302 5810
025b0302
ME		 5811 chain_entry->sd_seg = seg;
5812 chain_entry->sd_last_subseg = -1;
fbf71886 5813 chain_entry->sd_subspaces = NULL;
025b0302
ME		 5814 chain_entry->sd_next = NULL;
5815
8f78d0e9 5816 /* Find spot for the new space based on its sort key. */
025b0302
ME		 5817 if (!space_dict_last)
5818 space_dict_last = chain_entry;
5819
8f78d0e9 5820 if (space_dict_root == NULL)
025b0302
ME		 5821 space_dict_root = chain_entry;
5822 else
5823 {
8f78d0e9
KR		 5824 sd_chain_struct *chain_pointer;
5825 sd_chain_struct *prev_chain_pointer;
025b0302 5826
8f78d0e9
KR		 5827 chain_pointer = space_dict_root;
5828 prev_chain_pointer = NULL;
025b0302 5829
8f78d0e9 5830 while (chain_pointer)
025b0302 5831 {
dd2f509f
JL		 5832 prev_chain_pointer = chain_pointer;
5833 chain_pointer = chain_pointer->sd_next;
025b0302
ME		 5834 }
5835
8f78d0e9
KR		 5836 /* At this point we've found the correct place to add the new
5837 entry. So add it and update the linked lists as appropriate. */
5838 if (prev_chain_pointer)
025b0302 5839 {
8f78d0e9
KR		 5840 chain_entry->sd_next = chain_pointer;
5841 prev_chain_pointer->sd_next = chain_entry;
025b0302
ME		 5842 }
5843 else
5844 {
5845 space_dict_root = chain_entry;
8f78d0e9 5846 chain_entry->sd_next = chain_pointer;
025b0302
ME		 5847 }
5848
5849 if (chain_entry->sd_next == NULL)
5850 space_dict_last = chain_entry;
5851 }
5852
548ea75b
JL		 5853 /* This is here to catch predefined spaces which do not get
5854 modified by the user's input. Another call is found at
5855 the bottom of pa_parse_space_stmt to handle cases where
5856 the user modifies a predefined space. */
5857#ifdef obj_set_section_attributes
5858 obj_set_section_attributes (seg, defined, private, sort, spnum);
5859#endif
5860
025b0302
ME		 5861 return chain_entry;
5862}
5863
8f78d0e9
KR		 5864/* Create a new subspace NAME, with the appropriate flags as defined
5865 by the given parameters.
5866
5867 Add the new subspace to the subspace dictionary chain in numerical
5868 order as defined by the SORT entries. */
5869
5870static ssd_chain_struct *
5871create_new_subspace (space, name, loadable, code_only, common,
5872 dup_common, is_zero, sort, access, space_index,
5873 alignment, quadrant, seg)
5874 sd_chain_struct *space;
025b0302 5875 char *name;
de3ffc7a
JL		 5876 int loadable, code_only, common, dup_common, is_zero;
5877 int sort;
025b0302
ME		 5878 int access;
5879 int space_index;
5880 int alignment;
5881 int quadrant;
5882 asection *seg;
5883{
8f78d0e9 5884 ssd_chain_struct *chain_entry;
025b0302 5885
8f78d0e9 5886 chain_entry = (ssd_chain_struct *) xmalloc (sizeof (ssd_chain_struct));
025b0302
ME		 5887 if (!chain_entry)
5888 as_fatal ("Out of memory: could not allocate new subspace chain entry: %s\n", name);
5889
025b0302
ME		 5890 SUBSPACE_NAME (chain_entry) = (char *) xmalloc (strlen (name) + 1);
5891 strcpy (SUBSPACE_NAME (chain_entry), name);
5892
240cbc57
JL		 5893 /* Initialize subspace_defined. When we hit a .subspace directive
5894 we'll set it to 1 which "locks-in" the subspace attributes. */
5895 SUBSPACE_DEFINED (chain_entry) = 0;
5896
3b9a72c5 5897 chain_entry->ssd_subseg = USE_ALIASES ? pa_next_subseg (space) : 0;
025b0302 5898 chain_entry->ssd_seg = seg;
025b0302
ME		 5899 chain_entry->ssd_next = NULL;
5900
8f78d0e9
KR		 5901 /* Find spot for the new subspace based on its sort key. */
5902 if (space->sd_subspaces == NULL)
025b0302
ME		 5903 space->sd_subspaces = chain_entry;
5904 else
5905 {
8f78d0e9
KR		 5906 ssd_chain_struct *chain_pointer;
5907 ssd_chain_struct *prev_chain_pointer;
025b0302 5908
8f78d0e9
KR		 5909 chain_pointer = space->sd_subspaces;
5910 prev_chain_pointer = NULL;
025b0302 5911
8f78d0e9 5912 while (chain_pointer)
025b0302 5913 {
dd2f509f
JL		 5914 prev_chain_pointer = chain_pointer;
5915 chain_pointer = chain_pointer->ssd_next;
025b0302
ME		 5916 }
5917
8f78d0e9
KR		 5918 /* Now we have somewhere to put the new entry. Insert it and update
5919 the links. */
5920 if (prev_chain_pointer)
025b0302 5921 {
8f78d0e9
KR		 5922 chain_entry->ssd_next = chain_pointer;
5923 prev_chain_pointer->ssd_next = chain_entry;
025b0302
ME		 5924 }
5925 else
5926 {
5927 space->sd_subspaces = chain_entry;
8f78d0e9 5928 chain_entry->ssd_next = chain_pointer;
025b0302
ME		 5929 }
5930 }
5931
548ea75b 5932#ifdef obj_set_subsection_attributes
c5e9ccd0 5933 obj_set_subsection_attributes (seg, space->sd_seg, access,
548ea75b
JL		 5934 sort, quadrant);
5935#endif
5936
025b0302 5937 return chain_entry;
025b0302
ME		 5938}
5939
8f78d0e9
KR		 5940/* Update the information for the given subspace based upon the
5941 various arguments. Return the modified subspace chain entry. */
5942
5943static ssd_chain_struct *
3b9a72c5 5944update_subspace (space, name, loadable, code_only, common, dup_common, sort,
18c4f112 5945 zero, access, space_index, alignment, quadrant, section)
3b9a72c5 5946 sd_chain_struct *space;
025b0302 5947 char *name;
de3ffc7a
JL		 5948 int loadable;
5949 int code_only;
5950 int common;
5951 int dup_common;
5952 int zero;
5953 int sort;
025b0302
ME		 5954 int access;
5955 int space_index;
5956 int alignment;
5957 int quadrant;
18c4f112 5958 asection *section;
025b0302 5959{
8f78d0e9 5960 ssd_chain_struct *chain_entry;
025b0302 5961
dd2f509f 5962 chain_entry = is_defined_subspace (name);
025b0302 5963
548ea75b 5964#ifdef obj_set_subsection_attributes
c5e9ccd0 5965 obj_set_subsection_attributes (section, space->sd_seg, access,
548ea75b
JL		 5966 sort, quadrant);
5967#endif
5968
025b0302 5969 return chain_entry;
025b0302
ME		 5970}
5971
8f78d0e9
KR		 5972/* Return the space chain entry for the space with the name NAME or
5973 NULL if no such space exists. */
5974
5975static sd_chain_struct *
025b0302
ME		 5976is_defined_space (name)
5977 char *name;
5978{
8f78d0e9 5979 sd_chain_struct *chain_pointer;
025b0302 5980
8f78d0e9
KR		 5981 for (chain_pointer = space_dict_root;
5982 chain_pointer;
5983 chain_pointer = chain_pointer->sd_next)
025b0302 5984 {
8f78d0e9
KR		 5985 if (strcmp (SPACE_NAME (chain_pointer), name) == 0)
5986 return chain_pointer;
025b0302
ME		 5987 }
5988
8f78d0e9 5989 /* No mapping from segment to space was found. Return NULL. */
025b0302
ME		 5990 return NULL;
5991}
5992
75c28b49 5993/* Find and return the space associated with the given seg. If no mapping
8f78d0e9
KR		 5994 from the given seg to a space is found, then return NULL.
5995
5996 Unlike subspaces, the number of spaces is not expected to grow much,
5997 so a linear exhaustive search is OK here. */
5998
5999static sd_chain_struct *
025b0302
ME		 6000pa_segment_to_space (seg)
6001 asection *seg;
6002{
8f78d0e9 6003 sd_chain_struct *space_chain;
025b0302 6004
8f78d0e9
KR		 6005 /* Walk through each space looking for the correct mapping. */
6006 for (space_chain = space_dict_root;
6007 space_chain;
6008 space_chain = space_chain->sd_next)
025b0302 6009 {
8f78d0e9
KR		 6010 if (space_chain->sd_seg == seg)
6011 return space_chain;
025b0302
ME		 6012 }
6013
8f78d0e9 6014 /* Mapping was not found. Return NULL. */
025b0302
ME		 6015 return NULL;
6016}
6017
8f78d0e9
KR		 6018/* Return the space chain entry for the subspace with the name NAME or
6019 NULL if no such subspace exists.
6020
6021 Uses a linear search through all the spaces and subspaces, this may
6022 not be appropriate if we ever being placing each function in its
6023 own subspace. */
6024
6025static ssd_chain_struct *
47f45d66 6026is_defined_subspace (name)
025b0302 6027 char *name;
025b0302 6028{
c5e9ccd0 6029 sd_chain_struct *space_chain;
8f78d0e9 6030 ssd_chain_struct *subspace_chain;
025b0302 6031
8f78d0e9
KR		 6032 /* Walk through each space. */
6033 for (space_chain = space_dict_root;
6034 space_chain;
6035 space_chain = space_chain->sd_next)
025b0302 6036 {
8f78d0e9
KR		 6037 /* Walk through each subspace looking for a name which matches. */
6038 for (subspace_chain = space_chain->sd_subspaces;
6039 subspace_chain;
6040 subspace_chain = subspace_chain->ssd_next)
6041 if (strcmp (SUBSPACE_NAME (subspace_chain), name) == 0)
6042 return subspace_chain;
025b0302 6043 }
8f78d0e9
KR		 6044
6045 /* Subspace wasn't found. Return NULL. */
025b0302
ME		 6046 return NULL;
6047}
6048
8f78d0e9
KR		 6049/* Find and return the subspace associated with the given seg. If no
6050 mapping from the given seg to a subspace is found, then return NULL.
6051
75c28b49 6052 If we ever put each procedure/function within its own subspace
8f78d0e9
KR		 6053 (to make life easier on the compiler and linker), then this will have
6054 to become more efficient. */
6055
6056static ssd_chain_struct *
025b0302
ME		 6057pa_subsegment_to_subspace (seg, subseg)
6058 asection *seg;
6059 subsegT subseg;
6060{
8f78d0e9
KR		 6061 sd_chain_struct *space_chain;
6062 ssd_chain_struct *subspace_chain;
025b0302 6063
8f78d0e9
KR		 6064 /* Walk through each space. */
6065 for (space_chain = space_dict_root;
6066 space_chain;
6067 space_chain = space_chain->sd_next)
025b0302 6068 {
8f78d0e9 6069 if (space_chain->sd_seg == seg)
025b0302 6070 {
8f78d0e9
KR		 6071 /* Walk through each subspace within each space looking for
6072 the correct mapping. */
6073 for (subspace_chain = space_chain->sd_subspaces;
6074 subspace_chain;
6075 subspace_chain = subspace_chain->ssd_next)
6076 if (subspace_chain->ssd_subseg == (int) subseg)
6077 return subspace_chain;
025b0302
ME		 6078 }
6079 }
6080
8f78d0e9 6081 /* No mapping from subsegment to subspace found. Return NULL. */
025b0302
ME		 6082 return NULL;
6083}
6084
75c28b49 6085/* Given a number, try and find a space with the name number.
8f78d0e9
KR		 6086
6087 Return a pointer to a space dictionary chain entry for the space
6088 that was found or NULL on failure. */
6089
6090static sd_chain_struct *
025b0302
ME		 6091pa_find_space_by_number (number)
6092 int number;
6093{
8f78d0e9 6094 sd_chain_struct *space_chain;
025b0302 6095
8f78d0e9
KR		 6096 for (space_chain = space_dict_root;
6097 space_chain;
6098 space_chain = space_chain->sd_next)
025b0302 6099 {
8f78d0e9
KR		 6100 if (SPACE_SPNUM (space_chain) == number)
6101 return space_chain;
025b0302
ME		 6102 }
6103
8f78d0e9 6104 /* No appropriate space found. Return NULL. */
025b0302
ME		 6105 return NULL;
6106}
6107
8f78d0e9
KR		 6108/* Return the starting address for the given subspace. If the starting
6109 address is unknown then return zero. */
6110
6111static unsigned int
025b0302 6112pa_subspace_start (space, quadrant)
8f78d0e9 6113 sd_chain_struct *space;
025b0302
ME		 6114 int quadrant;
6115{
8f78d0e9
KR		 6116 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
6117 is not correct for the PA OSF1 port. */
4047ff1d 6118 if ((strcmp (SPACE_NAME (space), "$PRIVATE$") == 0) && quadrant == 1)
8f78d0e9 6119 return 0x40000000;
025b0302 6120 else if (space->sd_seg == data_section && quadrant == 1)
8f78d0e9 6121 return 0x40000000;
025b0302
ME		 6122 else
6123 return 0;
6124}
6125
8f78d0e9
KR		 6126/* FIXME. Needs documentation. */
6127static int
025b0302 6128pa_next_subseg (space)
8f78d0e9 6129 sd_chain_struct *space;
025b0302
ME		 6130{
6131
6132 space->sd_last_subseg++;
6133 return space->sd_last_subseg;
6134}
6135
75c28b49 6136/* Helper function for pa_stringer. Used to find the end of
8f78d0e9
KR		 6137 a string. */
6138
025b0302
ME		 6139static unsigned int
6140pa_stringer_aux (s)
6141 char *s;
6142{
6143 unsigned int c = *s & CHAR_MASK;
60937ce7
JL		 6144
6145 /* We must have a valid space and subspace. */
6146 pa_check_current_space_and_subspace ();
6147
025b0302
ME		 6148 switch (c)
6149 {
6150 case '\"':
6151 c = NOT_A_CHAR;
6152 break;
6153 default:
6154 break;
6155 }
6156 return c;
6157}
6158
8f78d0e9
KR		 6159/* Handle a .STRING type pseudo-op. */
6160
6161static void
6162pa_stringer (append_zero)
6163 int append_zero;
025b0302 6164{
8f78d0e9 6165 char *s, num_buf[4];
025b0302 6166 unsigned int c;
025b0302
ME		 6167 int i;
6168
8f78d0e9 6169 /* Preprocess the string to handle PA-specific escape sequences.
75c28b49 6170 For example, \xDD where DD is a hexidecimal number should be
8f78d0e9 6171 changed to \OOO where OOO is an octal number. */
025b0302 6172
8f78d0e9
KR		 6173 /* Skip the opening quote. */
6174 s = input_line_pointer + 1;
025b0302
ME		 6175
6176 while (is_a_char (c = pa_stringer_aux (s++)))
6177 {
6178 if (c == '\\')
6179 {
6180 c = *s;
6181 switch (c)
6182 {
8f78d0e9 6183 /* Handle \x<num>. */
025b0302
ME		 6184 case 'x':
6185 {
6186 unsigned int number;
6187 int num_digit;
6188 char dg;
6189 char *s_start = s;
6190
8f78d0e9
KR		 6191 /* Get pas the 'x'. */
6192 s++;
025b0302
ME		 6193 for (num_digit = 0, number = 0, dg = *s;
6194 num_digit < 2
6195 && (isdigit (dg) || (dg >= 'a' && dg <= 'f')
6196 || (dg >= 'A' && dg <= 'F'));
6197 num_digit++)
6198 {
6199 if (isdigit (dg))
6200 number = number * 16 + dg - '0';
6201 else if (dg >= 'a' && dg <= 'f')
6202 number = number * 16 + dg - 'a' + 10;
6203 else
6204 number = number * 16 + dg - 'A' + 10;
6205
6206 s++;
6207 dg = *s;
6208 }
6209 if (num_digit > 0)
6210 {
6211 switch (num_digit)
6212 {
6213 case 1:
6214 sprintf (num_buf, "%02o", number);
6215 break;
6216 case 2:
6217 sprintf (num_buf, "%03o", number);
6218 break;
6219 }
6220 for (i = 0; i <= num_digit; i++)
6221 s_start[i] = num_buf[i];
6222 }
5cf4cd1b 6223 break;
025b0302 6224 }
8f78d0e9 6225 /* This might be a "\"", skip over the escaped char. */
5cf4cd1b
KR		 6226 default:
6227 s++;
025b0302
ME		 6228 break;
6229 }
6230 }
6231 }
6232 stringer (append_zero);
6233 pa_undefine_label ();
6234}
6235
8f78d0e9
KR		 6236/* Handle a .VERSION pseudo-op. */
6237
6238static void
6239pa_version (unused)
6240 int unused;
025b0302 6241{
8f78d0e9 6242 obj_version (0);
025b0302
ME		 6243 pa_undefine_label ();
6244}
6245
eb91665b
JL		 6246/* Handle a .COPYRIGHT pseudo-op. */
6247
6248static void
6249pa_copyright (unused)
6250 int unused;
6251{
6252 obj_copyright (0);
6253 pa_undefine_label ();
6254}
6255
8f78d0e9
KR		 6256/* Just like a normal cons, but when finished we have to undefine
6257 the latest space label. */
6258
6259static void
025b0302 6260pa_cons (nbytes)
8f78d0e9 6261 int nbytes;
025b0302
ME		 6262{
6263 cons (nbytes);
6264 pa_undefine_label ();
6265}
6266
8f78d0e9
KR		 6267/* Switch to the data space. As usual delete our label. */
6268
6269static void
6270pa_data (unused)
6271 int unused;
025b0302 6272{
dc1b1221
JL		 6273 current_space = is_defined_space ("$PRIVATE$");
6274 current_subspace
6275 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
80aab579 6276 s_data (0);
025b0302
ME		 6277 pa_undefine_label ();
6278}
6279
8f78d0e9 6280/* Like float_cons, but we need to undefine our label. */
c5e9ccd0 6281
8f78d0e9 6282static void
025b0302 6283pa_float_cons (float_type)
8f78d0e9 6284 int float_type;
025b0302
ME		 6285{
6286 float_cons (float_type);
6287 pa_undefine_label ();
6288}
6289
8f78d0e9
KR		 6290/* Like s_fill, but delete our label when finished. */
6291
6292static void
6293pa_fill (unused)
6294 int unused;
025b0302 6295{
60937ce7
JL		 6296 /* We must have a valid space and subspace. */
6297 pa_check_current_space_and_subspace ();
6298
80aab579 6299 s_fill (0);
025b0302
ME		 6300 pa_undefine_label ();
6301}
6302
8f78d0e9
KR		 6303/* Like lcomm, but delete our label when finished. */
6304
6305static void
025b0302 6306pa_lcomm (needs_align)
025b0302
ME		 6307 int needs_align;
6308{
60937ce7
JL		 6309 /* We must have a valid space and subspace. */
6310 pa_check_current_space_and_subspace ();
6311
025b0302
ME		 6312 s_lcomm (needs_align);
6313 pa_undefine_label ();
6314}
6315
8f78d0e9
KR		 6316/* Like lsym, but delete our label when finished. */
6317
6318static void
6319pa_lsym (unused)
6320 int unused;
025b0302 6321{
60937ce7
JL		 6322 /* We must have a valid space and subspace. */
6323 pa_check_current_space_and_subspace ();
6324
80aab579 6325 s_lsym (0);
025b0302
ME		 6326 pa_undefine_label ();
6327}
6328
75c28b49 6329/* Switch to the text space. Like s_text, but delete our
8f78d0e9
KR		 6330 label when finished. */
6331static void
6332pa_text (unused)
6333 int unused;
025b0302 6334{
dc1b1221
JL		 6335 current_space = is_defined_space ("$TEXT$");
6336 current_subspace
6337 = pa_subsegment_to_subspace (current_space->sd_seg, 0);
6338
80aab579 6339 s_text (0);
025b0302
ME		 6340 pa_undefine_label ();
6341}
5cf4cd1b 6342
75c28b49 6343/* On the PA relocations which involve function symbols must not be
aa8b30ed
JL		 6344 adjusted. This so that the linker can know when/how to create argument
6345 relocation stubs for indirect calls and calls to static functions.
6346
8fd04cba
JL		 6347 "T" field selectors create DLT relative fixups for accessing
6348 globals and statics in PIC code; each DLT relative fixup creates
6349 an entry in the DLT table. The entries contain the address of
6350 the final target (eg accessing "foo" would create a DLT entry
6351 with the address of "foo").
6352
6353 Unfortunately, the HP linker doesn't take into account any addend
6354 when generating the DLT; so accessing $LIT$+8 puts the address of
6355 $LIT$ into the DLT rather than the address of $LIT$+8.
6356
6357 The end result is we can't perform relocation symbol reductions for
6358 any fixup which creates entries in the DLT (eg they use "T" field
6359 selectors).
6360
e67b3aa3 6361 Reject reductions involving symbols with external scope; such
b4682e51 6362 reductions make life a living hell for object file editors.
e67b3aa3 6363
b4682e51
JL		 6364 FIXME. Also reject R_HPPA relocations which are 32bits wide in
6365 the code space. The SOM BFD backend doesn't know how to pull the
6366 right bits out of an instruction. */
aa8b30ed
JL		 6367
6368int
c5e9ccd0 6369hppa_fix_adjustable (fixp)
aa8b30ed
JL		 6370 fixS *fixp;
6371{
6372 struct hppa_fix_struct *hppa_fix;
6373
fb338f1d 6374 hppa_fix = (struct hppa_fix_struct *) fixp->tc_fix_data;
aa8b30ed 6375
60937ce7
JL		 6376#ifdef OBJ_SOM
6377 /* Reject reductions of symbols in 32bit relocs. */
aa8b30ed
JL		 6378 if (fixp->fx_r_type == R_HPPA && hppa_fix->fx_r_format == 32)
6379 return 0;
249c7415
JL		 6380
6381 /* Reject reductions of symbols in sym1-sym2 expressions when
6382 the fixup will occur in a CODE subspace.
6383
6384 XXX FIXME: Long term we probably want to reject all of these;
6385 for example reducing in the debug section would lose if we ever
6386 supported using the optimizing hp linker. */
6387 if (fixp->fx_addsy
6388 && fixp->fx_subsy
6389 && (hppa_fix->segment->flags & SEC_CODE))
6390 {
6391 /* Apparently sy_used_in_reloc never gets set for sub symbols. */
6392 fixp->fx_subsy->sy_used_in_reloc = 1;
6393 return 0;
6394 }
83b59013 6395
b81231b7
JL		 6396 /* We can't adjust any relocs that use LR% and RR% field selectors.
6397 That confuses the HP linker. */
6398 if (hppa_fix->fx_r_field == e_lrsel
6399 || hppa_fix->fx_r_field == e_rrsel
6400 || hppa_fix->fx_r_field == e_nlrsel)
83b59013 6401 return 0;
60937ce7 6402#endif
aa8b30ed 6403
b4682e51
JL		 6404 /* Reject reductions of symbols in DLT relative relocs,
6405 relocations with plabels. */
8fd04cba
JL		 6406 if (hppa_fix->fx_r_field == e_tsel
6407 || hppa_fix->fx_r_field == e_ltsel
b4682e51
JL		 6408 || hppa_fix->fx_r_field == e_rtsel
6409 || hppa_fix->fx_r_field == e_psel
6410 || hppa_fix->fx_r_field == e_rpsel
6411 || hppa_fix->fx_r_field == e_lpsel)
8fd04cba
JL		 6412 return 0;
6413
e67b3aa3
JL		 6414 if (fixp->fx_addsy && fixp->fx_addsy->bsym->flags & BSF_GLOBAL)
6415 return 0;
6416
8fd04cba 6417 /* Reject reductions of function symbols. */
c5e9ccd0 6418 if (fixp->fx_addsy == 0
aa8b30ed
JL		 6419 || (fixp->fx_addsy->bsym->flags & BSF_FUNCTION) == 0)
6420 return 1;
6421
6422 return 0;
6423}
c5e9ccd0 6424
335d35c8
JL		 6425/* Return nonzero if the fixup in FIXP will require a relocation,
6426 even it if appears that the fixup could be completely handled
6427 within GAS. */
6428
6429int
6430hppa_force_relocation (fixp)
6431 fixS *fixp;
6432{
fb338f1d 6433 struct hppa_fix_struct *hppa_fixp;
4ff6f92a 6434 int distance;
335d35c8 6435
fb338f1d 6436 hppa_fixp = (struct hppa_fix_struct *) fixp->tc_fix_data;
335d35c8 6437#ifdef OBJ_SOM
249c7415 6438 if (fixp->fx_r_type == R_HPPA_ENTRY || fixp->fx_r_type == R_HPPA_EXIT
5ae218df
JL		 6439 || fixp->fx_r_type == R_HPPA_BEGIN_BRTAB
6440 || fixp->fx_r_type == R_HPPA_END_BRTAB
448b5aad
JL		 6441 || fixp->fx_r_type == R_HPPA_BEGIN_TRY
6442 || fixp->fx_r_type == R_HPPA_END_TRY
249c7415
JL		 6443 || (fixp->fx_addsy != NULL && fixp->fx_subsy != NULL
6444 && (hppa_fixp->segment->flags & SEC_CODE) != 0))
335d35c8
JL		 6445 return 1;
6446#endif
6447
4829cd65 6448#define arg_reloc_stub_needed(CALLER, CALLEE) \
335d35c8
JL		 6449 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
6450
6451 /* It is necessary to force PC-relative calls/jumps to have a relocation
6452 entry if they're going to need either a argument relocation or long
6453 call stub. FIXME. Can't we need the same for absolute calls? */
753dcbbd 6454 if (fixp->fx_pcrel && fixp->fx_addsy
4829cd65
JL		 6455 && (arg_reloc_stub_needed (((obj_symbol_type *)
6456 fixp->fx_addsy->bsym)->tc_data.hppa_arg_reloc,
6457
6458 hppa_fixp->fx_arg_reloc)))
6459 return 1;
6460 distance = (fixp->fx_offset + S_GET_VALUE (fixp->fx_addsy)
6461 - md_pcrel_from (fixp));
6462 /* Now check and see if we're going to need a long-branch stub. */
6463 if (fixp->fx_r_type == R_HPPA_PCREL_CALL
6464 && (distance > 262143 || distance < -262144))
6465 return 1;
335d35c8 6466
4829cd65 6467#undef arg_reloc_stub_needed
335d35c8
JL		 6468
6469 /* No need (yet) to force another relocations to be emitted. */
6470 return 0;
6471}
6472
8f78d0e9
KR		 6473/* Now for some ELF specific code. FIXME. */
6474#ifdef OBJ_ELF
4ff6f92a
JL		 6475/* Mark the end of a function so that it's possible to compute
6476 the size of the function in hppa_elf_final_processing. */
6477
6478static void
6479hppa_elf_mark_end_of_function ()
6480{
6481 /* ELF does not have EXIT relocations. All we do is create a
6482 temporary symbol marking the end of the function. */
6483 char *name = (char *)
6484 xmalloc (strlen ("L$\001end_") +
6485 strlen (S_GET_NAME (last_call_info->start_symbol)) + 1);
6486
6487 if (name)
6488 {
6489 symbolS *symbolP;
6490
6491 strcpy (name, "L$\001end_");
6492 strcat (name, S_GET_NAME (last_call_info->start_symbol));
6493
6494 /* If we have a .exit followed by a .procend, then the
6495 symbol will have already been defined. */
6496 symbolP = symbol_find (name);
6497 if (symbolP)
6498 {
6499 /* The symbol has already been defined! This can
6500 happen if we have a .exit followed by a .procend.
6501
6502 This is *not* an error. All we want to do is free
6503 the memory we just allocated for the name and continue. */
6504 xfree (name);
6505 }
6506 else
6507 {
6508 /* symbol value should be the offset of the
6509 last instruction of the function */
83b59013 6510 symbolP = symbol_new (name, now_seg, (valueT) (frag_now_fix () - 4),
4ff6f92a
JL		 6511 frag_now);
6512
6513 assert (symbolP);
6514 symbolP->bsym->flags = BSF_LOCAL;
6515 symbol_table_insert (symbolP);
6516 }
6517
6518 if (symbolP)
6519 last_call_info->end_symbol = symbolP;
6520 else
6521 as_bad ("Symbol '%s' could not be created.", name);
6522
6523 }
6524 else
6525 as_bad ("No memory for symbol name.");
6526
6527}
6528
8f78d0e9 6529/* For ELF, this function serves one purpose: to setup the st_size
4ff6f92a
JL		 6530 field of STT_FUNC symbols. To do this, we need to scan the
6531 call_info structure list, determining st_size in by taking the
6532 difference in the address of the beginning/end marker symbols. */
8f78d0e9
KR		 6533
6534void
6535elf_hppa_final_processing ()
6536{
6537 struct call_info *call_info_pointer;
6538
6539 for (call_info_pointer = call_info_root;
6540 call_info_pointer;
6541 call_info_pointer = call_info_pointer->ci_next)
6542 {
6543 elf_symbol_type *esym
c5e9ccd0 6544 = (elf_symbol_type *) call_info_pointer->start_symbol->bsym;
4ff6f92a
JL		 6545 esym->internal_elf_sym.st_size =
6546 S_GET_VALUE (call_info_pointer->end_symbol)
6547 - S_GET_VALUE (call_info_pointer->start_symbol) + 4;
5cf4cd1b
KR		 6548 }
6549}
8f78d0e9 6550#endif
GDB Binutils - Deliverables
This page took 0.531001 seconds and 4 git commands to generate.